File Nails While Play: Keeping your dog's nails at the right length is about house preservation and the dog's , if your dog hates having nails clipped, a dog scratch board is a great in-between option.Curved Scratch Board: The M shape scratch pad allows for the side nails to be shortened, unlike traditional ones. Curved surface files all 4 nails evenly, efficiently. and Nice-Looking: 0.39" thick plywood, sturdy , with rounded corners, which won't cause any harm to your family. Designed with the M shape and handles, for effort-saving when tilted and stable when laid flat.: The dog nail file toy does not need to be installed and can be used directly. It only takes 20 minutes to an hour to train your dog to use it. Please train your dog patiently, hope you and your dog enjoy this interaction.Size and Package: The size of the dog nail file board is 16.9 x 9.6 x 2.7 in, suitable for dogs of all sizes. The package contains 1x M-shaped dog scratch pad, 3x wear-resistant sticky sandpaper, and 1x user manual