For Bludgeons™ or slingshots only! Great fun for competition archery and Wrist-Rocket® enthusiasts. Saco™ systems are a dueling style flip paddle target, fun to shoot, exciting to watch, durable and economical. Shoot to relieve tension, hone quick aim-n-fire skills or enjoy the sounds and action of paddles flipping to the other side. Want more excitement from this dueling tree target stand?…its simple, add more people. Men, women and kids of all ages and skill levels have great fun competing one-on-one or in teams. When it comes to slingshot and archery fun…..Saco™ is the force multiplier. Recommended Bludgeons #5740, #5742 and #5748 sold separately. Patent 7,690,656,B2.