Premium Material: Crafted from high-quality durable leather, the strap offers a soft, comfortable feel with sweat-resistant and waterproof properties. Lightweight, flexible, and exceptionally sturdy, it perfectly complements your high-performance lifestyle. Compatible Models: This replacement strap is specifically designed for the Big Bang series with a 25x19x22mm special interface. It is not compatible with other watches. Optimal Fit: Features an adjustable length design with 7 holes, allowing customization to fit wrist sizes between 5-9 inches (approx. 12.7-22.9 cm). Includes a dedicated tool for easy removal of the old strap. Customer Service: Your satisfaction and positive word-of-mouth are our priorities. For any inquiries, please contact us anytime. We will promptly resolve your issues and provide satisfactory after-sales service. Package Contents: Strap ×1, Dedicated Removal Tools ×2, Spring Bars ×3.