Sling Shot Maddog Provides assistance with bench press Level 5 elastic: allows you to lift approximately 15-25% more weight than your max while double-ply support gives maximal assistance throughout the lift Best used with loads over 184 kg/405 lbs and up. If you cannot bench 400+ lbs raw, this Sling Shot will be less effective for your training Perfect for elite bench pressers who are looking to take their press to the next level The Sling Shot is designed to reinforce proper form and technique to help prevent injury.