Easy to use and highly effective, these screw nuts are an essential accessory for anyone serious about their . The spinlock barbell collars provide a quick and secure way to tight your weights in place, making them ideal for a variety of exercises, from weightlifting to strength training. Features -Color:Silver -Material:Stainless steel -Size:7.70X7.70X2.00cm/3.03X3.03X0.79in -Stability improvement: the dedicated screw rings effectively enhance the stability of dumbbell connecting rods, preventing any movement between rods for safer and more reliable training sessions -Versatile usage: these screw nuts are compatible with both dumbbell rods and barbell rods, allowing for flexible combinations to suit different training needs and diversify your workouts - durability: constructed from strong in structure and hardwearing materials, these screw nuts ensure a long time use, making your fitness equipment more durable -Portable design: the lightweight and portable dumbbell connecting rods allow you to work out anytime, anywhere, making them ideal for home, office, gym, and other settings -Enhanced training results: using dumbbell connecting rods can increase the difficulty of your workouts, boosting muscle strength and endurance for more effective fitness outcomes Package list: 2 x dumbbell screw