Set-4pcs MegiPet Dog Washable Female Puppy Diapers Cotton Pantie Underwear for Small and Medium Girl Dogs For SMALL dogs ONLY! Measure the waist size before the back legs. We highly recommend you measure your pet precisely with a flexible tape measure to ensure an accurate fit. We recommend one size up for comfort if your dog's measurement is the higher end of the range listed. These diapers are reusable. They DO NOT INCLUDE the ABSORBENT pads. Place adhesive napkin on inside of garment to adsorb liquids. Washable and reusable. Made of nice soft cotton, very comfortable for daily wear. Eliminates problems from untrained pups, females in season, incontinent dogs and excitable urination. Package incl 4pc of dog diaper female sanitary physiological pants: 1 green, 1 red, 1 blue and 1 yellow