Fixed the terrible rubber grips on my Rival 600 : r/steelseries
SteelSeries Rival 300 Gaming Mouse - Black - Newegg.com
Pack of 2 Mouse Anti Slip tape affixed anti sweat Grips paste pads for SteelSeries Rival rival 300|pad steelseries|mouse packsteelseries pad - AliExpress
Best Buy: SteelSeries Rival 300 Wired Optical 6-Button Gaming Mouse with RGB Lighting Black/Gray/White 62351