The Touchdog 'Trendzy' 2-in-1 Matching Fashion Designer Printed Dog Leash and Collar features an ultra-vibrant pattern of colors and composed of Durable Nylon with Dual-layered Heat-Transfer taping throughout that leash and collar that is designed to both bring out colors more effectively that will never wash out or fade. Equipped with rubberized stitching and eco-friendly plastic quick-click connecting buckles with a chrome-plated leash ring and a swivel leash hook connector for multi-directional pulling or tugging. Available in Multiple Sizes and Color Patterns. Sizing Guide (Inches) Collar and leash dimensions: Small: Leash Length: 48" Width: 0.59" Neck Girth: 10.63" - 13" Medium: Leash Length: 48" Width: 0.78" Neck Girth: 13.78" - 16.53" Large: Leash Length: 48" Width: 0.98" Neck Girth: 17.71" - 21.65"