Material: Medical grade silicone Color: white, black, mint green, orange, pink, navy blue, red, yellow, gray, wine red, rose red, matcha green, light purple, meat powder, sky blue Process: This product is made of silica gel, which is waterproof, sweatproof, comfortable and soft. The strap is thickened, which is comfortable to wear and easy to use. The material has no harm to human skin and is not allergic. Adapt to original Huawei watch fit smart watch Product size: medium size (unisex) Specifications: Applicable model: Huawei watch Fit (TIA-B09/TIA-B19) Packing: pearl bag Weight: 25 grams Suitable for wrist circumference: 5.5-8.7 inches Accessories; a plastic tool knife + 3 original buckles Advantages: 1. The metal buckle made of stainless steel 316 is more textured, 2. Medical grade silicone material, non-allergic and more environmentally friendly 3. The distribution tool knife makes it easier for users without nails to change the strap, and the plastic tool knife does not damage the machine, and better protects the watch 4. Distribute 3 spare buckles and no longer worry about broken buckles Package Included: 1*Strap