The French Fitness Chrome Olympic Spring Collar w/Plastic Covers are designed to fit 2" Olympic bar sleeves and are made from high-quality spring steel. They are also very durable and can withstand the wear and tear of regular use. The French Fitness Chrome Olympic Spring Collars are easy to use, making it quick and effortless to add or remove weight plates from the bar. Simply squeeze the handles together and slide the collar onto the barbell and release. This holds the weight plates firmly in place and stops them from slipping off the bar during lifting. Features durable plastic covers for easy handling. The plastic covers provide a superior grip surface than bare steel, making it simpler to handle the collars and adjust the weight plates.