Mentally challenging puzzle toy with varying levels of difficulty Multiple toys for multiple ways to play Crinkles and squeaks for added fun KONG Puzzlements provide the ultimate dog puzzle with varying degrees of challenge from easy to difficult, engaging even the cleverest of dogs. Pet parents will be delighted with having a 3-in-1 toy that provides multiple ways to play while offering an occupying mental challenge. Puzzlements are available in 4 shapes and 2 sizes and have varied textures, crinkle sounds and a squeaker that add to the fun.