Brand : TECSEE Switch Mount : 5-pin (PCB Mount) Switch Type : Tactile Bottom Out Force : 68g Actuation Force : 55g Actuation Travel : 2mm Total Travel : 3mm Top Housing : Proprietary Blend (PME) - Purple Stem : POM - White Bottom Housing : Proprietary Blend (PME) - Purple Lube : Lubed (Factory Lube) This switches feature a proprietary plastic blend from TECSEE called PME. This material is used for both the top and bottom housing and provides for a slightly deeper sound signature than other traditional plastic blends. The switches also utilize a long pole stem for a more solid bottom out sound with very lightly lubed and while they are ready to go on any mechanical keyboard, those inclined to tune their switches will find an excellent starting point.