The new line of Akko Custom Series (CS) switches comes with dustproof stem to reduce stem wobble with translucent polycarbonate (PC) bottom for better RGB backlit effects. Jelly Black is the heaviest Akko CS switches with 50gf actuation force and a 22mm extension spring, returning a more forceful rebound comparing to Radiant Red and Matcha Green. Akko CS switches are equipped with LED slot ready for LED Mod/Assembly, and are SMD compatible (LED underneath the switch), giving you the flexibility to create a custom keyboard that stands out from the crowd. With an approximate lifespan of 60 million keystrokes based on laboratory durability tests. The package comes with 45 switches and a plastic tray, ensuring your switches stay in top condition for longer. Akko CS switches come with an MX style structure, making them compatible with most keycap sets with (X) cross stem. Please note that a switch opener is not included.