Avoid - breaks into choking sized pieces
My 7kg puppy destroyed the small one in a matter of hours and the medium in less than a day. I contacted the UK distributor, as the website says it breaks into pieces the size of a grain of rice which will harmlessly pass through - but it doesn't - it breaks into choking sized pieces! The distributor is not remotely interested and told me not to give it to my puppy if it breaks into bigger pieces - which it states it should not do in the first place!