Color...Blue Type of equipment...Collars, leads, harnesses Dog breed...Other Type of dog clothing...Other Type of dog clothing...Other TRUE LOVE Dog Collar, Dog Collar, Dog Training Collar for Small, Medium, and Large Dogs, Pet Supplies, 3M Reflective Material, Nylon, Breathable, Elastic, Soft, Adjustable Genuine quality assurance. Dog collar made of nylon material with excellent flexibility, durability, and lightness, with ventilation holes on the lining. 3M reflective stitching for safe night walks, also recommended for functionality. The impact-resistant zinc alloy clasp has high tensile strength, corrosion resistance, and hardness. Measure your pet's neck circumference and choose the size that applies. ・Size L Neck circumference: Approximately 45cm～50cm Genuine product