WayIn 10 Pack Silicone Fastener Ring for Fitbit Flex Wristband Wrist Band Bracelet- Fix the Clasp Fall Off Problem - Secure Your Wristband in Style(Mixed Color) Designed specially for fitbit flex to protect the clasp loose and band fall off Comfortable and durable silicon made Colorful, secure your wristband in style and get it looks fun SIMPLE AND FUNCTIONAL: Slide the ring over the clasp when you put on your wristband, simple as that FITS FITBIT FLEX ONLY: The size of the silicone rings have been specially designed to fit the Fitbit Flex. It does NOT fit other activity trackers or wristbands.