I have a very playful Sheltie. She went through puppyhood with a mini version of "Terrible Nasty Scaries Angry Kitty".  This toy has lasted over a year and a half (we still have this unscathed toy and she still enjoys it). We are hooked. We purchased the full size Dirty Rotten Kitty because she has now grown up. My dog can play tug-of-war and not rip limbs off.  She can chew on it and it doesn't wear out.  Her teeth do not pierce into the strong canvas fabric and tear it.  I also purchased the "Postal Plaything" because my husband is a mailman and I have a warped sense of humour. These Fat Cat Toys are virtually undestructible and my furkid and I love them!