Automatic Extending Design: This retractable dog lead offers an automatic extending and retracting mechanism with up to 5 meters of freedom for your dog to roam while you maintain control during walks. Chew-Proof and Durable: Built with chew-proof materials to withstand playful chewing, delivering long-lasting durability for energetic dogs that tend to chew leads. Lock and Release Mechanism: Integrated lock and release lets you adjust the slack or lock the length in place, ensuring a secure and safe walking experience for both you and your dog. Ideal for Small to Medium Dogs: Specifically designed for small to medium breeds, providing ample room to explore without compromising control. Use scenarios: - Urban strolls: extend to allow space around pedestrians and obstacles, then lock as needed for steady control. - Park or trail exploration: give your dog room to sniff and explore up to 5 meters while you stay aware and in command. - Near roads or driveways: retract quickly to keep the dog close when hazards are present, improving safety.