1、 Compatibility: The smart replacement wristband is compatible for Amazfit T-Rex2 smart watch. Flexibility, tensile strength, silicone material, tension, bending, deformation, and test indicators are all tested. 2、 Durable and Breathable: Simple style adds color to your image. The lightweight and durable porous design greatly improve the breathability of the strap. 3、 Adjustable Size: The size can be adjusted according to individual wrist size (min: 1inch - max: 8.5inch). Quick release pins for easy installation and removal. Perfect fit, no gaps. 4、 Premium Material: The strap is made of high-quality high-quality silicone material, which fits your skin for a comfortable wearing experience. The softness is moderate and it is very comfortable to wear. 5、 Multi-color Options: You can choose more different colors according to your preference and clothing.