ELECOM Ergonomic Comfort Design Trackball IST Wireless 2.4GHz Connection, Smooth Tracking with Ruby Ball Bearing, 36mm Ball, Thumb Control, Compatible for Windows, PC, and Mac Black (M-IT10DRBK) USB-Wireless

ELECOM Ergonomic Comfort Design Trackball IST Wireless 2.4GHz Connection, Smooth Tracking with Ruby Ball Bearing, 36mm Ball, Thumb Control, Compatible for Windows, PC, and Mac Black (M-IT10DRBK)

Product Features

• RUBY BALL BEARING MOUNTED TYPE- Ruby ball bearing provides the feelings and smoothness.
• INTERCHANGEABLE BEARINGS - Replaced with ELECOM bearing parts that sold separately.
• 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 : 5.2oz
• *This product does not include replacement RollMaster bearings.