Review on 🖱️ Nulaxy Ergonomic Mouse - 2.4G Wireless Vertical Mouse with 3 Adjustable DPI (800 / 1200 /1600) - Optimum Ergonomic Optical Mouse with 6 Buttons - For Computer, Laptop, PC, iPad, Desktop, MacBook - Black by Lory Finley

I can't understand how many positive reviews there were for this mouse. I'm a gamer and recently started trying a vertical mouse for work. My wrist felt tired very quickly after using this mouse; Worse, my pisiform is the common point of contact between my hand/wrist and my desk or mouse pad. It turned red and started to hurt. All in all, I wouldn't recommend this mouse to anyone. The surface of the mouse is also too smooth, almost slippery. I could never find an acceptable position to put my hand on him. I think I'll stick with my Razer DeathAdder for now. Also, sometimes the scroll wheel doesn't work; other times it is. I don't know if it's a manufacturer or packaging error.