This is the Su Color R2 purple switches. They come with improved factory lubing and leaves. Leaf ticks and unwanted noises no longer exist. HMX Su color is the second switch designed by WJBY studio, and it is the first HMX switch with a full PA12 housing. When paired with the T5 stem, it has a subtle and relatively deep clack sound. The T series stem is the go-to option at HMX if a deeper switch needs to be made, and among them, the T5 comes with the deepest sound signature. However, you know what HMX's "deep" sounding switches are like. They are only relatively deeper than other HMX switches, but you won't be disappointed by their iconic solid bottom-out and sound. The X90 in fine packaging options comes with the metal switch box, cute artisan keycap, and switch tester as shown in the picture 1 quantity = 10 switches  Switch Type: Linear Designer: WJBY Manufacturer: HMX Stem material: T5 Top Housing: PA12 Bottom Housing: PA12 Operating Force: 45±3g Bottom-out Force: 50±3g Pre-travel: 1.8mm±0.2mm Total Travel: 3.6mm±0.2mm Spring: 22mm Single-Stage KOS stainless steel extended spring Factory Lubed: Yes! mixed GPL105&GPL205 on leaf spring, stem feet, and bottom housing rails. Dry film lube on springs