Wrist rings-- suitable for running, yoga, dancing, pilates, walking or daily practical use.Wrist weights-- easy to clean, sweat proof and waterproof, can be used for a long time.Wristband weights-- with fine workmanship, not easy to wear and tear, very practical in use.Silicone weight straps-- compact and portable, more convenient to store and carry out.Weight rings-- easier to fit the ankle or wrist, not easy to fall off.