Lock Jaw Olympic Collars provide a fast, convenient way to secure your plates to your weight bar. Designed to fit on a 2" Olympic-sized bar, these simple clamps go on with one hand and let you get down to the dirty work of knocking out those reps. From Steelbody.
Includes two Lock Jaw collars
Fits on standard 2" Olympic-sized bar, not included
Injected molded pressure pads
Recommended for use with steel, urethane, or rubber-coated plates
Lock and release
Each measures approximately 4"L x 2"W x 3.5"H, weighs 1 lb