Tengreen Power Lifting Weightlifting Quick Release Pair of Locking 2" (50mm) Olympic Size Barbell Clamp Collar for Pro Crossfit Training,2-Inch Diameter Size Olympic Bars Set Of 2 Clamps (Black) 100% New,Fastens to all Olympic Bars 10 times stronger grip than spring collars (ABS Locking) One pair of 2" barbell clamp. .A pair of buckles about 350g. Easy to install and remove Made of high quality ABS material,Compatible with crossfit workouts,Olympic lifts,overhead press,deadlifts,bench press,or any other workout using 2 inches Olympic Barbell. Sturdy innovative design, very practical and convenient.The most durable collar that will stand up the toughest home, gym, or group-exercise environment.