Gamo Rocker Pellet Trap 5 metal paddles 4 paddles flip up when hit -- hitting center paddle resets the other 4 6.50x6.50x8 5 lbs. For .177-caliber LEAD pellets Use .177-caliber airguns with a max muzzle velocity of 750 fps To help prevent ricochet, place trap at least 15 feet from muzzle of gun Do not use steel BBs or non-lead pellets, as they could damage the trap and increase ricochet