Features: Nylon woven material, no harm to human skin, non-allergic, sweat-proof, comfortable and soft, comfortable to wear and easy to use. With a porous design, one size fits most people, and the length can be adjusted to meet different needs. Designed for a precise fit on the wrist for greater comfort and durability. Fashionable and elegant appearance, showing your personality, fashionable and novel. A variety of colors are available, you can match different colors according to your mood or outfit to provide you with a comfortable experience. Specifications: Main Material: Nylon Width: Approx. 20mm/0.78" Fits Wrist Circumference: 5.5-8.7 inches Color: Light Pink, Blue Gray, Light Gray, Black, Amry Green, Colorful(optional) Applicable Models: for T-Rex2 for Smart Watch Packing: pearl film bag Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you mind. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Piece Nylon Watch Strap 1 Piece Tool