Improve the feel of your scroll wheel with an ALPS Mouse Wheel encoder. These help to remove the soft or 'mushy' feeling that many gaming mice scroll wheels have from factory or that have worn out overtime. The stepping bumps in these ALPS encoders feel more pronounced and defined. ALPS encoder - Heavy and defined scrolling Kailh encoder - light and smooth scrolling Glorious Model O- 9mm Finalmouse UL2 - 9mm Razer Deathadder/Mamba 9mm Mouse Encoder Heights: Logitech G Pro Wireless 8mm Logitech G Pro X Superlight 8mm Coolermaster MM710 11mm Endgame XM1, XM1r 9mm Glorious Model O 10mm Glorious Model O- 9mm Finalmouse UL2 Cape Town, Starligh-12 9mm Finalmouse Ultralight Pro, Air58, Scream One 11mm Logitech GPRO/G102/G203/G304/G305 10mm Pulsar X2 - 10mm Pulsar X2 Mini - 9mm Razer Deathadder/Mamba 9mm Razer Deathadder Elite, DA V2, 14mm Razer Viper Mini 9mm Razer Viper Ultimate 11mm Roccat Kone Pure Ultra 9mm Roccat Burst Pro, Burst Core 11mm Xtrfy M4 11mm Xtrfy MZ1 Zy's Rail 7mm Xtrfy M42 10mm ALPS encoder - Heavy and defined scrolling Kailh encoder - light and smooth scrolling Specifications Mount Height - Available in 7mm, 9mm, 11mm Detent: 24 Detent Force: 5±3 mN/m Brand: ALPS