Perixx Peripro-303GB Small Trackball, 34 mm Ball for Perimice and M570, Elecom, Kensington, Glossy Blue

International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. * TRACKBALL - Designed for any trackball mice using 1.34 (34mm) trackball size; Such as: PERIMICE-517/717, MX Ergo, M570, Cordless, TrackMan Wheel (not include Trackman Marble), M-XT3DRBK (EX-6), M-DT2URBK, EX-G/DEFT, MA-WTB43BK GLOSSY SURFACE - The surface is treated with a special coating to provide a precise and smooth tracking performance ABSOLUTE SPHERICAL - A diameter of 2.17 inches; Provides fast movements and works perfectly for multiple screen control HOW TO REMOVE THE TRACKBALL - The trackball from PERIMICE-517/717 can be easily removed from the bottom hole of the mouse, using the tip of your finger