[High quality material] The dumbbell loop is made of ABS plastic, strong and durable, not easy to break, the plastic is very light and will not add weight to your workout. [Wide Use] The dumbbell curl is suitable for weightlifting, fitness training, strength training, body shaping, anaerobic exercise, orienting and other sports. It is generally used for daily fitness and training. [Easy to use] Yeuri The dumbbell buckle is equipped with the quick lock and release operation of the collar clip. dumbbell, which is very suitable for one-handed assembly. It can be easily opened and closed with one finger, and the installation time is very short. [Safety Design] There are a rubber ring inside to ensure that it is firmly fixed and will not be easily loosened or slipped off to ensure maximum safety during strength training. Specification: Size: inner diameter 2.5 cm Colour: red, black, yellow Quantity delivered: 6 pieces