S: Length 45cm, Height 32.5cm, the two holes are 13cm from the inside, and the two holes are 28cm from the outside. M: Length 51cm, Height 37.5cm, the two holes are 16cm from the inside, and the two holes are 32cm from the outside. L: Length 57cm, Height 42.5cm, the two holes are 17cm from the inside, and the two holes are 34cm from the outside. Sturdy and durable: The dog hammock helper is made of mesh textile material, with the sling sewn using a special process, not a rope ring design, helping prevent tearing and detachment. Professional pet grooming kit: Includes nail clipper x 1 (with safety stop guard design), nail file x 1, double row pet comb x 1 (suitable for short and long hair), premium quality S-hook x 2 (for round bars), hanging sling x 2 (suitable for irregular bars). These items combined with the pet nail hammock provide a practical solution for pet care. Convenient: This dog grooming sling hammock makes it easier to administer medicine, clean teeth and ears, and apply eye drops, helping reduce the risk of being bitten. It is also a helpful tool for grooming professionals. Comfortable: Designed with a breathable and flexible 3D mesh structure to keep pets comfortable during grooming. The reinforced hemming around the holes helps reduce leg friction, keeping pets calm. The product is easy to clean and suitable for both hand washing and machine washing. Dog grooming hammocks are available in S, M, and L sizes. Choose the appropriate size for your pet.