Product description Size: diameter 25mm wire diameter 4mm2 circle Colour: silver spool, black handle Material: nickel-plated spring steel Package content packaging: 2 pairs of spring buckles 1. High quality material: These spring clips are made of high quality ABS and steel, sturdy and durable, refined and processed. Rubber grips allow for a convenient and easy removal procedure. 2. Safe exercise: With the comfortable rubber grips which are easy to install and detach and can also be used by women with one hand. These dumbbell collars do not slip during exercise and are very safe to use. 3. Various sizes: Choose 25mm or 28mm dumbbell collars that suit your needs. Please check the size (diameter) of your rod before ordering. All clips come with rubber tips for easy use. 4. Intended use: Suitable for use at home, in many and all commercial fitness equipment, for men and women who do weight training frequently. Improve your balance, coordination and flexibility. 5. Ideal for Home: The compact structure of this piece of equipment makes it an ideal companion to go with the rest of your home gym equipment. It allows for quick weight plate changes and can be used for different plates including steel, urethane or rubber plates. Note: Data are all manual measurement, please allow an error of 1-3cm; due to the difference in light and display, there would be a certain color difference, please refer to the actual object received.