1 Pair 25/28/30mm Fitness Dumbbell Clips Barbell Collar Lock Gym Strength Training Body Building Weight Lifting Clamp Descriptions: Material: ABS plastic Color:Black/Red Inner diameter: 25mm/28mm/30mm Suit for: Screw type bar and Smooth type Bar Features: 1.Sturdy innovative design 2.Reduces damage to plates or bars 3.Fully Captured Pressure Pad 4.No stickers, glue or adhesive 5.Easy to glide on and off 6.Effectively secures weights 7.Snap-latch locking Package Include: 1 pair Dumbbell Clip Notes: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you