With their stylish design and tough yet tactile polyurethane plates these dumbbell sets are ideal for health and fitness clubs as well heavy duty gyms and crossfit environments the rubber plates come in pairs of 1 25kg 2 5kg and 5kg weights allowing you to increase or decrease the weight of the dumbbell to maximise your fitness regime and adapt the dumbbell to the exercise you are performing equipped with safe and secure spring release collars which are convenient and user friendly enablin