CSL - Vertical Ergonomic USB Mouse - Wired Optical Mouse TM137U - Mice with Ergonomic design - 5 Buttons - 1600dpi - prevention against mouse arm tennis elbow - For Laptop Desktop PC Computer Macbook

I have used many different mouses over last 20 years, at work and privately. There were some good, bad and average. My last and previous one was the worst. Single clicks were sticky making it double, very annoying and I truly hated it. One day I noticed vertical mouse on a desk. Its user was very happy with it, so I thought I will give it a go. Did some search online and found CSL's one. Price was acceptable, not too cheap and not too expensive, if it was rubbish, I would cry. When it arrived, I unpacked it and began using it. My God, what a thing! It is so easy to use, precise and extremely comfortable. It fits a hand perfectly and I can't stop holding it! It has three extra buttons, two for moving pages forth and back and the third one but ... don't know what it does yet :) Scroll is very good with option to press it, which allows to move a page with sliders up, down and sideways without pressing or holding any button. Very useful, especially in Excel. It also has a lovely blue light on its left side :) Honestly, I'm not exaggerating, IT IS THE BEST mouse I have ever used. I'm loving it and recommend it to everyone. I bet most people will never use anything else once tried this one. But of course, some may not like it, as is with everything else. It works for me beautifully, so it may for you to :)

Purchased as a replacement for another vertical mouse which went through batteries like a kid in a candy store goes through, candy! The design of this fits the hand perfectly and keeps the wrist in a more relaxed and natural position. I have two paralysed fingers so find it almost impossible to use a flat mouse. With this design it’s much easier and more comfortable. It tracks smoothly across the mouse pad and the wire tucks neatly out of the way across the top of my keyboard. Both my son and I have used this style for years and are very happy with how it moves and functions. So far there’s been no annoying squeaking or other noises. Bottom line - I would purchase again. Great little mouse

This mouse was so good I bought it twice, after the first one went to my second PC. Pros: Very functional in terms of what it's meant to do. Easy to use. Very comfortable, both ergonomically, and the texture of the mouse Sensitive mouse that responds well. Good enough cable length for more situations Very good value for money. Clicks are satisfying and accurate. Looks great Cons The material of the mouse can get sticky if you're not careful and use it with oily hands. So, keep your hands clean and the mouse will feel great. Otherwise it can get sticky and doesn't actually clean very well. This is because of the material. Might have been nice if the side light was LED and could be changed, but sadly it's just blue and cannot be turned off.

Really enjoy the style and shape and smooth use of this mouse.

Bought my mouse 4 years ago in desperation. I have arthritis in every joint and also Dupuytrens syndrome (thickening of tendons pulling fingers into palm). The odd shaped mouse I had been using - a confectionary giveaway that suited my hand and arm problems, finally collapsed. Tried every other on offer in local computer shops and none were usable as they were either far too big for my hand - since I am a woman, or just the wrong shape altogether to suit me. Up to then I hadn't fully realised that computer add-ons were designed by men for men and if you look up a mouse for a child, they are still the same size, just in bold playroom - style colours. Faced with that I turned to vertical mice, which back then looked weird. I never looked back after I found this CSL mouse and am buying another today after 4 years, simply because common sense tells me that it can't last forever and I don't want to be without it. I can't buy a vertical mouse in local computer shops as they are still considered odd, but they are not. The vertical mouse - and I am talking about this mouse in particular, is the most sensible bit of design in the last few years in computer terms. The wrist pain endured after every session at my machine vanished, and the hand/arm position is so natural that it makes mouse-work a breeze. Because of the length of the keys for right and left clicking, it doesn't matter if your hand is big or small, so even a child could use it with comfort. If you have discomfort in your wrist, shoulder or fingers, give this upright Mouse a go. Some say the change from regular mouse to vertical takes time for the adjustment, but it didn't for me. It felt so right from the off. I can't sing this mouse's praises highly enough - and that's after 4 years of daily use - which is why I am buying another one now, just in case. I hasten to add, the mouse is still going strong but when the day does eventually come, I want another identical one to replace it.

Recently I've been having a lot of trouble with my wrists and fingers over the past months, after looking at everything I do each day and pinpointing repetitive use seems my old style mouse could have been the culprit along with age etc. Having read loads of reviews for the best type of Vertical mouse, this one came up as my favourite, and after 2 days use I'm not disappointed at all. It is a lovely shape and fits naturally in my hand, I don't need to grip it in order to operate the normal functions. The outer material is very smooth and a comfort to use for long periods. The left and right mouse buttons are very quiet and the scroll function is extremely smooth. With the positioning of these functions my fingers don't get painful and my wrist is pain free. The mouse is wired which is what I wanted, you get a very generous lead with it so it doesn't hinder the movement or your operation of the mouse. This has nothing to do with the overall function but this mouse looks very stylish and the cute blue line looks great when lit up. It felt a bit odd at first, but I soon got used to the new position very quickly and I'm wondering why I didn't get a mouse like this a long time ago. I'm so impressed with it my sister went and got one for herself after seeing mine in operation. I therefore have no hesitation in recommending this very user friendly mouse to anyone.

Picked up for heavy continuous gaming and office work on a static desktop station. Material is grippy, mouse is not too heavy. The M1 & 2 buttons work well with both a slack and closed grip. There is plenty of room to be adjusting your hold on the thing. This is an ergonomic vertical mouse so of course it is tilted, and enough to reduce torsion of your forearm and keep the flat of your wrist from being compressed. Combine it with a wrist supporting mouse mat and you have a very comfortable set up for prolonged use. Minor cons involved the mousewheel click (slightly awkward but is easing with repetition) and the additional buttons on the thumb side, one of which I press accidentally sometimes. Other than that I have no complaints. This seems like a very good mouse, especially for the price. I have only had it for a week though. If you have no intention of spending a large amount on a vertical mouse but like the idea then this is worth a go.

I use one for work so bought one for home as it really makes a difference due to it's ergonomic design. Lovely feel to it and blue light also looks very nice. Very good value and highly recommended.