FeaturesVinyl Spinlock Collars made for all 1" Standard Weight Lifting Barbells or Dumbell Bars(hollow rod ).Spinlock Collars are easy and quick way to move your plates around.They also keep weight plates securely and safely while lifting.Made from robust and durable material for long lasting use.Comes in Black colour and as pair.Specification100 percent Brand new and high quality.Made from Robust Vinyl MaterialEasy and Quick to removeSafe and Secure to provide balance and stabilityCome as 2 Pairs ( 4 X Spinlock Collars) in Black ColourCondition:100 percent Brand new and high quality Manufacture:China,Chinese Factory Homegrown products for SaleTips:Please allow 1-3cm error of measurement.Photo color might be a little different from the actual product due to color display of different monitors. Product Includes: 4x Standard Dumbbell Bar Spinlock Collars 2 pairs Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.