Gazzew Boba BLACK U4 Silent Tactile Switch 62g Mechanical Keyboard Tactile Switches Factory donut dipped springs and the same lube as in the white housings. Color does not effect performance you can expect the same results and sound. Made on the same molds and with the same plastics with a different color and the same springs you will find in white Gazzew U4 Silent.*** Features: The Gazzew Boba U4 is a Silent Tactile Switch type that comes with a Black Pearl Base design which is made out of a new plastic material that is comparatively softer than that of the regular Nylon PA66 material, but it is very smooth and has the same good characteristics of a Polycarbonate material, it also has a higher melting point than the Polycarbonate Material. The design of its Top Housing is intended to reduce the Top Switch Wobble issue, which in turn gives a better feel, performance, and sound. The Base part, on the other hand, is specifically designed to ensure universal compatibility with the PCBs available in the market. Its switch internal is designed to have a smooth "D" shaped bump without pre-travel distance, and its leaf is designed to maximize its tactility, and at the same time, to reduce its ping through the use of new materials. Its Korean-made Stainless Switch Spring is also designed to have a very minimal ping, which gives out a very silent and tactile typing experience. SPECS: New Black Base New Pearl Leaf Reduced Ping Reduced Leaf Ping PCB Mounted 5 pins Stainless Korean-made Springs Compatible with Outemu-Only PCB sockets Compatible with Kailh or Gateron Sockets Universal base - RGB slot (compatible with all LED styles) Available in packs of 10pcs Switch 1 order quantity = 10pcs Switch