Brand : TTC Switch Mount : 3-pin (Plate Mount) Switch Type : Tactile Bottom Out Force : - (No Data) Actuation Force : 42g Actuation Travel : 2mm Total Travel : 3.5mm Top Housing : Polycarbonate (PC) - Transparent Clear Stem : POM - Bluish White Bottom Housing : Nylon - Bluish White Lube : Lubed (Factory Lube) TTC Bluish White switches feature a number of unique features such as a “double coiled spring”, dust proof stem, and “muted bottom”. The goal of this is a more linear weight curve, and a quieter and deeper bottom out sound. The double-coiled spring results in an extremely satisfying press and return combined with the light spring weight (42g actuation), the top-out being described as “punchy”. Convex lens in top housing to help diffuse backlights. There’s also a small silicone plug at the bottom of the center tube of the bottom housing which allows for the bottom-out to be muted as the stem pole makes impact, but the top-out is louder by comparison as a result.