?After-sale Service?: We provide 12-month quality service for Fitbit Ace 3 bands. If you received defective bands or had any problems, please feel free to contact us, we will always stand by you at any time. ?Assemble Simply?: The quick assemble design bands can easy to assemble and resize, Little notch to keep band in place and hold down the end of the excess strap,protect your watch safety during outdoor indoor exercise. No falling off. ?Environmental Material?: Ace 3 bands for Kids are made of Eco-friendly, soft silicone material, which prevents skin from irritation or allergies. And bring you best wearing experience. ?Multi-color Choices?: Available in multiple colors for Fitbit Ace 3 Bands, Free size fits 4.9"--6.4"(124mm--162mm) wrist. It Makes your watch a new look, and perfectly fits your daily outfits. ?Compatible Model?: Soft Silicone Bands compatible with Fitbit Ace 3. The replacement bands are only compatible with 2021 New Release. (Fitbit Ace 3 Smartwatch are not Included).