G Pro switches already lubed from factory, No need extra lube after receive it. ^^ Alloy contacts process upgrade, The improve the resistance to oxidation and vulcanization, Thus improving the service life of the switches. ^^ The Gateron switch has been redesigned with a mold for the G Pro series, which helps reduce valve stem swing.. ^^ Compatible with Cherry MX, Kailh, Otemu switch, suitable for most mechanical keyboards. ^^ Support 2 pin 3mm round light, 5-pin linear switches compatible with PCB hotswappable keyboards.