Squirrel Dude is a classic! The toy can be filled with, for example, dry food or frozen with wet food. The toy is made of safe, non-toxic materials and is machine washable. Squirrel Dude withstands even heavy chewing and is easy to clean. Treats drop from the toy randomly while the dog is playing and the flexible spikes can be cut, making the difficulty level of the dog toy easier. Size M measures 8.3x8.3x18.34cm and is intended for 9-22 kg dogs.