SHIPPING INCLUDED Chin Up Bar, Pull Up Bar Heavy Duty Steel Construction: Sturdy materials - the Chin Up Bar is rated to a maximum of 250 lbs. Adjustable for Doorways 28" - 32.7": The Chin Up Bar adjusts to fit most solid wood doorways constructed to national building code standards. Scratch-resistant Finish: High quality powder-coating ensures that the product will look good for the life of the product. Locking Brackets: Brackets are mounted with screws in the door frame for security. Locking pieces snap over the Inversion Bar to keep it in place, but can be unlocked to remove the Bar from the door frame. In place, the Bar will not interfere with the operation of the door. Foam Hand Grips: Grips make mount / dismount more comfortable, and help prevent calluses and slippery hands when performing chin-ups. Warranty: Manufacturer's 5 Year Limited