Our cream switches now feature alloy copper and palladium gold contact, which provide better conductivity, stability, and durability. With dustproof stem and 5-Pin, v3 generation pro cream switches are designed to bring a better stability typing experience. v3 pro 45gf tactile cream blue switches provide a unique and satisfying typing experience with their 18mm extension spring and POM/PC/PA materials. The creamy and smooth feel of our switches is further enhanced by the use of lubed rail. MX Style Compatibility - 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. Built-in LED Slot - CS key 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. Durability and Longevity - With an approximate lifespan of 60 million keystrokes based on laboratory durability tests, v3 Generation Pro Switches are built to last. Cream Blue Pro is an upgraded version of Cream Blue. Major Changes: 5-Pin switches (better stability) Dustproof stem (better stability) Upgrade silver contact to palladium gold Upgrade phosphor copper to alloy copper Lubed rail to reduce friction Overall it should bring a more consistent typing experience. Different batches may have different appearance, which does not affect use. Type: Tactile Operating Force: 45 ± 10gf Total Travel: 3.30 mm Pre Travel: 2.2 ± 0.5 mm Tactile Position: 0.10 mm Tactile Force: 55 ± 10gf Colour:Blue Material:POM+PC Package Contents: 45 x Keyboard Switch