DOCO® 4 Feet Premium Nylon Leash features soft and abrasion-resistant nylon for walking, strolling, and running. It includes a 360° swivel hook made of chrome-polished zinc alloy, making it convenient to attach to any dog collar or harness. There is an optional ID ring for your dog's ID tags or your keys. *Compatible with DOCO® Nylon Collar: DCSN002, DCS005, DCS006, DCSN003 *Compatible with DOCO® Nylon Harness: DCSN202, DCSN201 Special Features: - 100% high-quality nylon - Higher tensile strength than polyester - Mold, aging, and abrasion resistant - Soft texture for comfortable walking with your dog - Triple slide system for easy size adjustment - Heavy-duty 360° swivel zinc alloy hook - Small ID tag for your dog's identity - Bright colors for easy visibility at all times! Size Chart: XS 3/8" × 48" (1.0cm × 120cm) S 5/8" × 48" (1.5cm × 120cm) M 3/4" × 48" (2.0cm × 120cm) L 1.0" × 48" (2.5cm × 120cm) XL 1.5" × 48" (3.8cm × 120cm)