A low profile single lock on grip, designed to reduce arm pump and hand numbness. The Diamond knurled texture, with saw tooth finger ramps and a super tacky 20A compound provide ultimate traction. More traction means less death-gripping the bars and less arm pump. The single lock has the profile of your favorite double lock-on. But to reduce hand numbness we've replaced the hard outer clamp with extra rubber for greater cushioning of your palm heel.