STRONG & LONG-LASTING - Made of hight quality spring steel and plastic materials, it has excellent grip and can hold the weight plate firmly in place. They are an indispensable tool during your strength training. COMFORTABLE GRIP - Ergonomic handle design ensures the using comfort, The Weighted plates can be easily switched, save your time to switch weights and hassle-free. SAFER PROTECTION - This collars can fix dumbbell bars tightly to prevents plate weights from sliding off the bar, provides you with a safer protection, to ensure that you can exercise with peace of mind. SIMPLE & PORTABLE - Small in size, simple in design and not fancy, this clip does not take up too much space on the bar, and is convenient to carry. It is the best choice for home fitness equipment. Included Components - 4 x steel clips 28MM. Note: Please measure your bar before place an barbell.