[Material]:The barbell spinlock collars are made of iron material, chrome plated, and corrosion resistant and can be used for a long time.[Size]: The anti-slip collar of the barbell is suitable for 25mm standard barbells or dumbbells. Please check the size before .[ANTI-SLIP DESIGN] - The barbell clamp is equipped with a non-slip rubber ring, ensuring it can be securely and securely attached to the barbell or barbell bar.[Package Content]: 4 Pcs x Dumbbell Spinlock CollarsApplication: for use with bumper plates and lifting platforms. Also a practical and gift for fitness lovers.Produktbeschreibung Specification: Material: iron with chrome-plated material Size: 1 inch / 25 mm. Colour: silver. Package includes: 4 x dumbbell spinlock collars. Please note: due to manual measurement, there may be a 0-2 mm error. The colours shown in the picture may not fully match the actual object due to the recording method and display device. Please make sure you do not mind before you , thank you : We are committed to providing you with the .If you encounter any problem during your ge experience, please us without hesitation.