Excellent Backlight Effect. Perfect For RGB Keyboards This switch’s transparent light guide column enhances the light transmittance of the switch for a better backlight effect. It is perfect for RGB keyboards. Extension Spring. Quick Return By engineering it with an extended 20 mm long spring, the Kailh Box Winter Switch provides a smooth typing feeling and a quick, strong rebound. Dustproof & Waterproof “Box” Build This switch’s unique inner box design is dustproof and waterproof to help increase the switch’s lifespan and longevity. 5-Pin Stable Scheme The 5-Pin structure has two additional support feet on each side than the 3-Pin switch, making their grip firmer with the keyboard plate and stays more stable while typing with less wobbling. Box Winter Switch Typ TactileOperation Force 38±10 gfPre-travel 2.0±0.4 mmReturn Force ≥13 gfTactile Force 55±10 gfTotal Travel 3.6±0.3 mmSound Level MediumOperation Life Up to 80M cyclesSuitable For gaming/office