Doestyle Standard 1-Inch (25mm) Spring Clip Collars, Pair, Barbell collar, by Sports & Fitness 1 pair (2pcs) in package 1-Inch: for 1-Inch(25mm) solid bars; 1.1-Inch: for 1.1-Inch(28mm) solid bars Comfortable grip handles. Spring collar produced using heavy duty, high tensile strength,. Maintain a lock-tight fit on your bar through years of hard use. The Stick-It! Weight Clip! 100% SATISFACTION GUARANTEED