GAZZEW Boba U4 silent tactile switches are a new switch with a large, smooth “D” shaped tactile bump with no pre-travel. The pearl white base is made of a new plastic that is softer than regular nylon with the benefits of polycarbonate (PC). The top housing is designed to reduce wobble and they feature a universal base designed to work with PCB mounted RGBs and all in switch LEDs. The leaf is designed to increase tactility while reducing ping through the use of new materials. These switches also come with Korean-made stainless springs designed to have minimal ping, giving you a nearly silent typing experience.