Features: 1. Provides a comfortable grip to slide in and out of the bar with ease. 2. Unique chrome-plated protective surface and double-ring steel design can hold the bumper in place. 3. Does not slip while exercising Great for home workouts, push-ups, fitness, bench press. 4. Simple and effective, make sure the bumper and plate are kept in place on the rod with strong grip. 5. Not easy to rust, durable, easy to disassemble, easy to move. Specification: Item Type: Dumbbell Spring Lock Material: Metal plated plastic handle Color as shown Shown handle length: about 40mm1.6in optional Dimensions Inner diameter: about 28mm1.1in, 30mm1.2in, 50mm2in Length 28mm and 30mm Type: Approx. 85 mm3.3in 50mm Type Length: Approx. 115 mm4 .5in Packaging List: 4 x Dumbbell Spring Locks