Sculpt Defined Arms with the Body-Solid OB47B Curl Bar! Target Your Biceps & Forearms: Engineered with angled grips, the OB47 curl bar isolates and intensifies bicep and forearm workouts, helping you achieve sculpted, defined arms. Injury Prevention & Comfort: Biomechanically designed grips promote proper form and comfort, reducing the risk of injury while maximizing your gains. Durable & Versatile: Featuring a tough, black e-coated finish and secure knurled grip, the OB47B handles up to 300 lbs. for various exercises, including curls, extensions, and rows. More Than Just Curls: Go beyond bicep curls! This versatile bar allows for hammer curls, reverse curls, skull crushers, upright rows, and more, for a complete upper body workout. Specs Bar Diameter: 25.5mm Collar Mount: Shoulder Bolt Inside Sleeve Dimensions: 31.5" Sleeve Length: 7" Product Weight: 17 lbs. Weight Capacity: 300 lbs. Product Length: 47" Note: Some versions have plastic endcaps to cover a screw. Collars not included