Material:Spring steel,ABS Color:Black Size:24/25mm Item type:Dumbbell Barbell Clip They will fit all standard 1" Hole (2.5cm) weightlifting barbells or dumbbell bars Made from Solid steel and rubber support grip. Rubber Grip Handles allows comfortable and easy to method to remove Packing included:1Pc Dumbbell Barbell Clip 1.Please allow 0-1cm 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!