Brand : SP-Star Switch Mount : 5-pin (PCB Mount) Switch Type : Linear Bottom Out Force : 57g Actuation Force : - (No Data) Actuation Travel : 2mm Total Travel : 4mm Top Housing : Nylon - Beige Stem : POM - Vanilla White Bottom Housing : Nylon - Light Blue Lube : Lubed (Factory Lube) These SP-Star Meteor White switches manufactured by SP-Star are smooth and produces a soft bottom out due to the all-nylon housing of the switch, which feels softer than a Polycarbonate (PC) housing. Meteor White also has a nice, dampened sound signature too.