[Keyboard Switch] Gateron Oil King Black Keyboard Switches – Gateron Key switches are 5-pin custom switches made for mechanical keyboard DIY enthusiasts to obtain satisfying typing feelings with more affordable options.eyboard DIY enthusiasts to obtain satisfying typing feelings with more affordable options. Gateron Oil King Black Keyboard Switches 55gf Linear Switch – Gateron Oil King is heavier than Gateron Milky Yellow Pro Keyboard Switches and provides unique smooth typing experiences. Pre-Lubed Switches – Pre-lubed at the factory. Lubed switches shall effectively reduce ping for average users and maintain fast actuation. More and thick lubes can be applied afterward by individual users based on personal preference. Durability – Approximate lifespan of 60 million times of keystrokes based on laboratory durability test. Meanwhile, a single package comes with 110 switches. Actuation Force: 55gf, Pre Travel Distance: 2mm, Total Travel Distance: 4mm, Stem Material: POM, Top Housing Material: Nylon, Bottom Housing Material: Ink housing material, Spring: 20 mm Black-plated Spring, LED Support: Plug In, Pins: 5-Pin, Pre-lubed: Yes Built-in LED Slot – Gateron Oil King Keyboard switches are equipped with an LED slot ready for LED Mod/Assembly and aren't SMD compatible (LED underneath the switch). GATERON Oil King Switch