Started looking at vertical mice after starting to have wrist pains with the tons of clicking I have been doing for work. Gave this a try after looking at a couple of options and worked out really well. Took about a day or two to get used to it but love the fact you can switch between hands with the front switch. Also the hand feels a lot better during the work day compared to before with the regular office mouse, so highly recommend to give it a try if having pain/tightness in the wrist too. I got medium because my hand is roughly around 16cm but I think I could have gone for the small too. The second one I ordered is a Small to compare t...view more