The smart watch bands are made of environmentally friendly TPU Material, Safe , Non-toxic, Waterproof and Sweatproof, which is flexible and does not deform even when twisted at 360 Degree Compatible Models - The Sport silicone watch strap is perfectly compatible for Huawei Band 6 and Honor Band 6 14 Colors - There are 14 different variety of colors on our sport band to personalize your Huawei/Honor band to fit your mood, and outfit in daily life