Completely silent, and fully integrated into the stock, the ACUdraw PRO converts crossbow draw weights to 5 pounds of effort. It features a newly designed internal gear system that silently cocks the crossbow and reduces the number of cranks needed to do so to 12 an incredible 40 percent faster than previous ACUdraw models. With an auto-engaging lever and ACUtorq crank handle that eliminates the possibility of over-cranking, it is the fastest, lightest, quietest, and safest cocking device on the market.