Kone Pure Sel Core Performance 5000dpi Pro-optic Rgb Gaming Mouse, BlackElite grade the kone pure se cements its place within the kone tradition with a feature set aimed at gaming purists. 91% the size of the kone, it weighs an incredibly low, featherlight 88g and boasts long lasting omron switches. In spite of its streamlined package, its performance is second to none thanks to its precision pro optic (r7) sensor. Ergonomic 88 gram design the kone pure se is built for gamers who want the fan favourite design of the kone