Product InformationDumbbell handles made of high quality silicone, soft and durable, non-slip surface for extra grip. Stay away from cheap foam grips which compress and break easily.Product AdvantagesAs the diameter of the rod is increased (the diameter of the mat is 5cm), a larger grip is needed, activate more muscle fibers in your upper body, especially in your arms, resulting in higher strength and more muscle mass. EASY TO USE: Easy to use and remove. Transform every barbell in seconds. 1. Spread the grips, 2. Tie them to the bar. That was it. Training with a thick rod is so easy! And they don't slip easily. Like a vise: the bigger the handle, the strongerTo increase muscle mass and strength: you can attach them to any dumbbell, dumbbell, pull-up bar, pull-up bar, cable or any other bar for training with a thicker barbell. Ideal for athletes who want to strengthen their grip strength.Easy to carryLightweight and small, portable, easy to carry in the gym bag. Ergonomic design. Slips into hands and palm. Ensures less stress in the joints, less injuries, less imbalances and more muscle fibers. If you have any questions about the product, please contact us first. Note: The data are all manual measurement, please allow 1-3cm error, due to the light difference and display, there will be some color difference, depending on the physical item received.