Ergonomoic Vertical Grip mouse

This grip mouse  is very easy to use and can help to reduce RSI,and reduced muscle tension in your forearm

It is the best choice and the most people using this type of mouse.

Specifications:

Manual size  : for small, Medium, large hand use

Dimensions: 7 x 7.2 x 12.5 cm (HxWxD)

Buttons qty : 3 buttons

System required: OS;Windows 98/NT/ME/2000/XP/Vista and Mac

Drivers: Plug and play

Use: right hand

Color: black-silver

Scroll function : yes