S: Length 45cm, Height 32.5cm, the two holes are 13cm from the inside, and 28cm from the outside. M: Length 51cm, Height 37.5cm, the two holes are 16cm from the inside, and 32cm from the outside. L: Length 57cm, Height 42.5cm, the two holes are 17cm from the inside, and 34cm from the outside. Sturdy And Durable: The dog hammock helper is made of mesh textile material. The sling is sewn with a special process, not a rope ring design, so there is no worry about tearing or falling off. Professional Pet Grooming Kit: Includes nail clipper (with safety stop guard design), nail file, double row pet comb (for short and long hair), premium quality S-hook (2 pieces for round bars), and hanging sling (2 pieces suitable for irregular bars). These items combined with the pet nail hammock make grooming easier and more comfortable. Convenient: As a pet owner, this dog grooming sling hammock makes it easier to administer medicine, clean teeth and ears, and apply eye drops at home without worrying about being bitten. It is also a helpful tool for veterinarians. Comfortable: This pet grooming harness bag features a breathable and flexible 3D mesh structure to keep pets comfortable. The reinforced hemming around the holes reduces leg friction, helping pets stay calm during grooming. The product is easy to clean and can be hand washed or machine washed. Dog grooming hammocks are available in S, M, and L sizes. Choose the right size for your pet.