Versatile rope-chain design for small to medium pets This retractable dog leash uses a rope-chain construction that provides a comfortable and secure running experience for your dog. The length is adjustable, giving your pet more freedom to move while you maintain control. Integrated USB rechargeable flashlight The leash includes a built-in USB-rechargeable flashlight, ideal for evening or early morning walks. It improves your visibility in low light and helps keep you and your dog safe. Ergonomic grip The ergonomic handle offers a secure and comfortable grip, making it easier to control your dog during walks. The design reduces hand fatigue and provides long-lasting comfort for you and your pet. Reflective components The rope features reflective stitching for added visibility during nighttime strolls. This enhances safety in low-light areas, helping you and your dog stay seen from a distance. Use scenarios - Nighttime urban walks in neighborhoods with limited lighting, improving visibility for you and your dog. - Early morning or dusk strolls in parks or on trails where light is scarce. - Training sessions or longer walks on varied terrain where a secure, adjustable leash is beneficial. This description stays true to the original product’s brand, specifications, models, and functions, focusing on function, compatibility with small to medium pets, size-adjustable rope-chain, material, and performance without adding unsupported details.