DescriptionMade from solid spring steel and plastic material, the dumbbell buckle are heady duty and durable. Ring inside collars, collars stay tight, non-slip handle prevents slipping. An economic and convenient way to realize fitness training without leaving your home.Features- Color: Black and silver.- Material: Spring steel and plastic.- Size: 7.00X6.50X1.50cm/ 2.75X2.55X0.59inch.- Spring steel and plastic material, shiny color, solid, thickened, durable and not easy to rust.- The spring has amazing elasticity, the spring clip is suitable and wonderful for most devices. - Barbell clamps can keep weight plates placed securely and safely while weightlifting.- You will have a good use experience because of the perfect workmanship of this product. - Suitable for weight lifting, barbells dumbbell bars, training gym sports, including workouts.