High quality materials: high quality ABS plastic made from spring steel. Strong and durable, not easy to deform. Non-slip and loose. It uses the automatic flow and baking paint conveyor belt technology to realize 360 degree spraying without dead ends.Size: 25/28/30 mm diameter. High quality spring steel, plastic handle. Easy to use, clean and hygienic.New accessories for fitness equipment: clean and hygienic, environmentally friendly and odorless. Super soft protective cover. It is convenient and quick to assemble and disassemble. Make fitness easier.Special function: non-slip and loose. Easy to use, strong and not deformed. Spring clip closure for dumbbell bars. It can be easily disassembled and operated.Widely used: multifunctional barbell clip. Suitable for solidly polished bars. Used for weight lifting, fitness, strength training, weight training, triceps exercise machine, etc.