Thanks to my sister-in-law, Monique, for recommending this Kong toy to me. Monique has the small blue kong for her Chihuahua (Meci) and sometimes it's being used by Anti's Maltese (Cathie). I bought 2 Kongs instantly for Chewy & Lowy. Kong keeps your dog busy for an hour or two. At least Chewy and Lowy are now rarely chewing on my parents' furniture :) We'll see for how long.