Hi All, I have hedgehogs and they love to run on wheels. They also love to break their legs on them! So I took "weavable plastic" the kind found at craft stores and ran it around the inside of the wheel, connecting it with zip ties. No more big holes! I tried this on a 14" chinchilla wheel (this thing is HUGE) and my ferrets love it! They used to try to get into the hedgehogs but they are only 9 inches! It was terribly funny! On the same note (hedgehogs), my ferrets met one of my hedgies for the first time a few nights ago. What a crack up! Razz's tail turned into a bottle brush and he kept trying to get his nose under it and flip it over. No luck there! He then tried to dig through it - ouch! Those things have spines! All the while my Tazz is sitting back looking at Razz as if to say - "Are you STUPID? Leave it alone!" After about 5 min. everyone went on their merry ways. Hope Razz & Tazz [Posted in FML issue 1466]