Review on ZLOT Vertical Gaming Mouse: Programmable Laser Mice with Ergonomic Design, RGB Lighting & High Performance Features by Samuel Lewis

This vertical mouse works really well if you scratch the sliders below. The pads were a bit sticky when I first used them, but I scratched them with my fingernail until I'd peeled most of the black material off to get at the blue material underneath, and now it slides easily over that mousepad. The rear thumb button on the side of the mouse is in the perfect position, but the front thumb button is not. I have to change the position of my hands to reach it. But overall I really like the mouse, it's not too big like others I've tried and it's the perfect weight for gaming.