The 'ball' that you can buy for these hamsters.....can you just use a ball from pet shop ? Or is the GoGo branded ball a specialised one ? (the ball that they go inside).
My local pet shop sell them for £3.99 and these retail at £9.99 - but as everyone probably knows, they are always out of stock...Any knowledge will be appreciated.
*I've already read about them being "unsafe" in the news, incase anyone wishes to get hysterical about them.