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PACKAGE INCLUDE: there are 4 pack 1 inch solid spinlock collars in the box, exactly fit your 1” standard weight barbells and dumbbell, strong and sturdy enough, so you need not worry the barbell comes off, very convenient and be at ease
SUPER MATERIAL: each of them is made of high end steel and upscale black plastic, ultra-soft protective cover make them assembly and disassembly convenient and save time, very easy to lock your barbell
WAY TO USE: the barbell clip adopt ergonomic design, Long press the button to expand the diameter, until it reaches the right position of the barbell, then release the button to fix the barbell, save effort, and expand and reduce the diameter through the principle of leverage
PROPER SIZE: the diameter of the 1 inch barbell clip is 25 mm, the total length is about 5.1 inch, small but powerful, you can take them to gym, physical education, also, they are suitable for professional athletes to lift barbell
NOTE: please allow 1-3mm errors to the actual dimension due to manual measurement, but it is tight enough and can prevents plate weights from sliding off the bar, if you have any other problems about the product detail, please contact us

Gym Barbell Weight Lifting Dumbbell Lock Clamps Spring Collars Clips 1 Inch for Standard Bar Barbell Strength Training Exercise Work Out
Quantity
1 inch (25mm): 4 Pack
Features
Prevents plate weights from sliding off the bar
Made from solid steel and rubber grip
Rubber grip handles give you comfortable feeling
1 inch clips for 1 inch bar
Great for home or gym weight lifting training
Specifications
Material: ABS Plastic & Metal
Main color: Silver with Black
Note
Please allow 1-2cm error due to manual measurement and stay them away from kids under 3 years old, they can not be toys