Amazon.com: LZYDD Replacement 10g Weight with Weight Door Cover for Logitech G403/G703/G903/G502/G Pro Wireless Gaming Mouse (Black Weight + Door) : Video Games
Logitech G403 Hero 25K Gaming Mouse, Lightsync RGB, Lightweight 87G+10G optional, Braided Cable, 25, 600 DPI, Rubber Side Grips, Black, 4.9" x 2.7" x 1.7"- PartsXP
Logitech G403 HERO Gaming Mouse with LIGHTSYNC RGB Lighting