Wooden trap (walnut-stained pine) 13.50H x 12.50W Grooves in the sides that accept targets 10-gauge steel backstop For guns up to 20 ft-lbs. muzzle energy Place trap at least 10 meters from muzzle Includes pellet trap, 10 lbs. ballistic putty, 1 target backer, steel backstop and 3 NRA official 10-meter 12-bull air rifle targets * Recommendations: Regularly inspect your trap for signs of wood splinters and weakening of the rear wood panel Regularly inspect the steel backstop for signs of penetration and/or weakening NEVER shoot at your pellet trap with guns exceeding 20 ft-lbs. NEVER place the trap closer than 10 meters from the gun's muzzle Make sure your trap is backed up by something that safely stops any ammo that penetrates or misses the trap Regularly remove pellets and BBs from the duct seal, as they'll eventually start ricocheting off the ones embedded in the trap