Please leave a message on the order page if you need different colors Material: Silicone Color: solid color, two-color Process: The top layer of cowhide is selected for the surface of this product, and the surface is treated with plain weave.The bottom leather is made of super fiber material, waterproof, sweatproof, comfortable and soft.The strap adopts thick design, comfortable to wear, easy to use, high-quality choice.The material is harmless to human skin, environmentally friendly, safe, and non-allergenic. For haylou solar LS05 smart watch Product size: medium size (unisex) Packing: opp bag packing Specifications: Made of environmental TPU material, non-toxic and odorless. Made of high-quality ,environmental and healthy. Comfortable to wear. Softness is moderate, wear very comfortable. Compression molding, sturdy and durable. The size can be adjusted according to the circumstance of individual wrist. Package Included: 3/2/1xStrap