Features:WHAT YOU WILL RECEIVEPackage included 6 pieces of silver barbell spin lock collar, sturdy and durable to use, enough quantity to meet your daily use and replacement needs, practical barbell accessories.DURABLE MATERIALThe spin lock collar is made of cast iron, high hardness, one-piece molding process, very strong, rust resistant, durable, and can be used for a long time, it is a good replacement accessory, and easy to use.SUITABLE FORThe size of the spin lock collar is about 5 x 2cm/1.97 x 0.79inch, suitable for dumbbells or barbells with an inner diameter of 2.5cm, which is convenient for installation and saves time.WIDELY USABLEExcellent for platform lifting exercises and bumper plate use, they can be used with barbell exercises, overhead presses, deadlifts, and bench presses as well as the majority of weight lifting barbells or dumbbell bars.GREAT GIFT CHOICEThe spin lock collar is suitable for all kinds of weightlifting barbell dumbbell bar training gym sports, really a great gift for weightlifting lovers, suitable as a birthday gift, holiday gift, etc.,Description:Package Included: Package included 6 pieces of silver barbell spin lock collar screws, enough quantity to meet your daily use and replacement needs.Durable to Use: The spin lock collar is made of cast iron, high hardness, one-piece molding process, very strong, rust resistant, durable.Suitabel for: The size of the spin lock collar is about 5 x 2cm/1.97 x 0.79inch, suitable for dumbbells or barbells with an inner diameter of 2.5cm.Specifications:Material: cast ironColor: silverSize: about 5 x 2cm/1.97 x 0.79inch(length x thickness)Suitable for: suitable for 2.5cm inner diameter dumbbell or barbellPackage Included:6 pcs x spin lock collarNote:1. Due to the light and screen difference, the item& 039;s color may be slightly different from the pictures.2. Please allow 0.5-2 cm differences due to manual measurement.