Jamie - I really don't know, but I let Molly have a play with mine everynow and then and as long as it is pumped up enough she has not been able to pop it!
Miss Molly Moo (aka The Piranha/The four legged Mouth) GSD 31/10
Raennik Hassan (Cooper) GSD 19/10/11
Paris Tabby Cat 15 years
Texas Tabby Cat 15 years