Just a note. Make sure that you clean it out regularly. I had forgotten about Kaybie's as it got covered under her blankets in her crate. I found it a few weeks later and I was horrified to look inside and see little wiggling maggots on the left over little bit of peanut butter. I felt horrible but thankfully I got it out of there before Kaybie saw it. I couldn't even touch it I was so grossed out. My BF took it for me and boiled it to make sure it was sterilized and ok for Kaybie to use again.
Ewwww, gross, I'd have thrown up.