Matcha Green Pro has upgraded the regular Matcha Green with dustproof structure, with additional lubes on the rails, providing better out-of-box experiences; The 55gf actuation force for Matcha Green Pro is heavier than regular Matcha Green and is a for users who are in favor of smooth linear switches but prefer stronger feedback and sound; V3 pro Linear Switches(45 pcs ) Compatible with most mechanical keyboards with 3/5-pins hot-swappable socket.Fitted with hot-swap socket types including for Outemu, Kailh and Good replacement switches for Cherry, Kailh, , and switches : Approximate lifespan of 60 million times of keystrokes based on the laboratory durability test Equipped with LED slot ready for LED Mod/Assembly, and are SMD compatible (LED underneath the switch) Come with MX style structure so would fit most keycap sets with (X) stem Type: Linear Operating Force: 50gf5gf Total Travel: 3.8 mm Pre-Travel: 2.000.5mm Tactile Position: N/A Tactile Force: N/A Material: plastic colour: Green Package Contents: 45 x Mechanical Keyboard Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.