A Logitech exclusive, the G5's 36-gram adjustable weight cartridge gives you thousands of variations on balance and weightincluding one thats perfect for your unique gaming style. Polytetrafluoroethyl ene (PTFE) gaming feet provide the ultra-smooth glide you want in a gaming-grade mouse, and Logitechs SetPoint software allows you to customize your mouse with advanced features such as game detection and in-game adjustable sensitivity (including independent x- and y-axis settings).