ELECOM Ergonomic Comfort Design Trackball IST Wired USB-A Connection, Smooth Tracking with Ruby Ball Bearing, 36mm Ball, Thumb Control, Compatible for Windows, PC, and Mac White (M-IT10URWH)

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About This RUBY BALL BEARING MOUNTED TYPE- Ruby ball bearing provides the feelings and smoothness. INTERCHANGEABLE BEARINGS - Replaced with ELECOM bearing parts that sold separatel y. ERGONOMIC DESIGN - Supports your hand in a natural angled position 28 degree for all day comfort. 36mm SILVER BALL SIZE - Easy to move from one end to the other even on large screens. Dimesion - Width 3.8 inch x Length 5.0 inch x Height 2.0 inch, Weight : 6.2oz *This product does not include replacement RollMaster bearings. Overview Brand : ELECOM Color : White Connectivity Technology : USB Special Feature : Ruby Ball Beairng Movement Detection Technology : Trackball Show more