Description Are you looking for a professional, yet reasonable Barbell Lock Collar? Are you in search of a sturdy, trustworthy accessory that can do multiple jobs at once?, ! Our Self-locking Security Nut must meet your needs, this Barbell Locking Nut-Barbell Lock Nuts is one of the great choices for you.-barbell screw nuts Features - Color: Black -Material:Plastic - Size: 6.50X6.50X2.50cm/2.55X2.55X0.98in -Made of sturdy plastic material for durability and longevity, can be used for longer time.-Dumbbell Anti-slip Nut -Versatile accessory adds variety to your workouts: the Barbell Self-locking Nut is a versatile accessory that adds variety to your workouts, making it more interesting and challenging.-Barbell Accessory -Easy to install and remove, making it convenient for quick weight changes during workouts.-household Dumbbell Locking Nut Barbell Fixing Nut-The Barbell Lock Collar is perfect for securing dumbbell bars or barbells during workouts-barbell nuts Self-locking Barbell Nuts-Anti Skid And Self Locking Features Provide Reliable Grip Preventing Weights From Slipping During Home Or Gym Training-Self-locking Security Nut dumbbell anti-loosening nut-Self-Locking Feature Provides Quick And Easy Installation For A Hassle-Free Gym Experience At Home Or In The Gym-Universal Dumbbell Nut barbell fasteners-The simple design of these Barbell Security Nuts makes them suitable for fitness enthusiasts of all skill levels-Self-locking Nut barbell buckle-Made of sturdy plastic material for durability and longevity, can be used for longer time-Anti-slip Metal Nut