4pcs Anti-Slip Spin-Lock Collar Screw Casting Iron Hex Security Nut Buckle

Description The spin-lock collars are made of high-quality cast iron material which is durable practical and long time service. The spin-lock collar clamp offers a superior grip to securely hold plates in place allowing for a safer workout. Features - Color: Silver. - Material: Cast iron. - Size: 5.00X5.00X1.50cm/1.97X1.97X0.59 inch. - These dumbbell hex nuts are easy to carry suitable for taking them to the gym or for fitness at home. - The collar nuts can be applied to barbells dumbbells weightlifting etc. - Perfect for workouts standard lifts overhead press bench press or any other workout. - Designed for secures the position of dumbbell on the bar convenient to install and remove. - Professional and practical design with beautiful appearance easy to rotate and less wear.