Ozone SMOG Product Gallery
At the bottom of the mouse you can spot five ceramic inserts, it will allow the mouse to slide over the mouse pad or whatever your preference is extremely smooth. Also the laser eye, and to the middle left your can see a button .. the arrow. Which is for the following:
Once you click that button on the right side you can remove the right side grip and exchange it for a Soften plastic finger groove version, included in the kit.
And when you push that little tray ... there's where you can enter the weights into a little drawer. Perfectly balanced in the middle of the mouse. Included are 6x ± 5g weights.