Lock-Jaw HEX 50mm / 2" Olympic Barbell Collar - Quick Release Barbell Clamp (LIGHT BLUE)50mm designed for all lifts including Bumper Plates, Olympic-Style and Powerlifting. The lightest of the Lock-Jaw Olympic collar lineup, the HEX features a patented quick-locking latch and maximum gripping surface area. Proprietary dual compound construction and..