The large Walkabout is approximately 18” in circumference, compared to the small, which is approximately 15.25" in circumference. 

Great question! The Walkabout comes with an adjustable treat dispenser to allow for various treat sizes and difficulty levels. This comes out to a total of 5 different-sized holes plus a lockout zone, which covers the hole entirely for travel or storage.

The treat setting can be changed by opening the Walkabout, and using the small interior handle on the adjuster inside to twist to the setting you’d like to use. Please be sure to lock your setting into place by aligning one of the notches in the rotator to the small ridge along the inside of the Walkabout.

The Walkabout is made from natural rubber, along with a nylon interior rotator.

Walkabout can be cleaned by hand by unscrewing the halves apart, popping the dial out by setting the top half on the floor and gently stepping on it, then submerging parts in a bowl of soapy water. Rinse with clean water and allow to air dry. Alternatively, for a deeper and more convenient clean, Walkabout is dishwasher safe. Separate out parts and set on top rack. We recommend air drying.