2 inch Olympic collars: Keep 2 inch plates secure on Olympic bars to support squats, deadlifts, and presses.Quick-release lock: Change plates in a few seconds to keep rest times short and training intensity high.Easy to lock: Set up solid bar security fast to perform supersets and drop sets while you train legs and back.Aluminum construction: Withstand daily gym use and keep plates in place to provide safe reps on chest and shoulder work.Sold as 1 pair: Set up both bar sides to ensure even loading and deliver consistent performance across every set.