Kaytee Comfort Harness with Stretchy Stroller Leash is the safest and most stylish way to walk your favorite furry friend! The Comfort Harness is designed to comfortably conform to your critter's contour.Comfort Harness is machine washable and made of a Durable Nylon MaterialVelcro straps make fitting remarkably easyE-Z snap buckle ensures a safe and secure connection on the harness and Includes a Stretchy Stroller LeashAssorted Colors - Blue, Green, Red, Tan, Brown, and Silver - let us pick a color for you!The unique harness and Stretchy Stroller ensures your pet cannot get away from you, yet its elasticity helps prevent injuries to your pet while being walked.Comfort Harness Sizing:Small (Neck 5-7" and Waist 7-9") - Fits ferrets and ratsMedium - (Neck 7-9" and Waist 9-11") - Fits rats, guinea pigs, and ferretsLarge - (Neck 10-13" and Waist 13-16") - Fits ferrets, dwarf rabbits, rats, and chinchillasX-Large (Neck 10-13" and Waist 16-18") - Fits large rabbits and chinchillas