Fasteners for Fitbit Flex by Purple Penguin, 17 Pieces, Silicone Wristband, Wireless Activity, Easily Fits Charge, Comes in Multiple Colors, Never Lose Your Bands Again. Secure Yours Today! KEEPS FITBIT FLEX SECURE - People want to keep track of their health with their Fitbit wristbands, or any similar wristband for that matter. With Purple Penguin's silicone fasteners, you don't need to worry about losing your Fitbit bands anymore! These multi-colored fasteners will most assuredly keep your wristband on your person at all times. No need to hesitate on engaging in rigorous physical activities. DURABLE SILICONE MATERIAL - Our fasteners are made of extremely durable silicone material that can withstand all manners of physical activity. Perfect for climbing, running, sprinting, contact sports, and many other activities. Additionally, because they are made out of silicone, the material is waterproof and comfortable. You will forget that they are even there! COMES IN MULTIPLE COLORS - For your special preference, we have included 17 fasteners, for a wide array of customization. The possibilities are endless! Choose different color schemes, decorate your bands with the your country's flag colors, or even adjust them depending on your mood. You can even fill your entire wristband with fasteners, and it would still be comfortable and unique! EASY TO INSTALL, FULLY FUNCTIONAL - Our fasteners are very easy to assemble and install. They will not require strings or wires for them to be firmly attached to the band. These fasteners are also flexible and sturdy enough to keep a tight hold on the clasp of your wristband that ensures security and safety. But most of all, they will fit perfectly, everytime! MONEY BACK GUARANTEE - We only care about your 100% satisfaction. If you feel this product didnt live up to your expectations, let us know and we promise a 100% money back guarantee.