Compatible Models: Only Compatible with Forerunner 35 GPS Running Smart Watch (No Watch included ). Material: High-class silicone material makes the forerunner 35 band Lightweight and Water-proof; Compression molding process, sturdy and durable, the softness is moderate, wear very comfortable. Fit Wrist Size: Forerunner 35 watch strap Fits 6.3'-9.05' (160mm-230mm) wrist, comfortable to wear. Easy and direct installation and removal. Intallation Way: Easy to remove or replace the Forerunner 35 band with the matched screwdrivers and screws, lock onto your Watch securely & tightly. Customer Service: Unconditionally refund or resend with any quality problems, life-time friendly customer service.