Here is the pics that I owed you guys. The square is my Ipod Nano for size comparison. The large one was 3 in long. I had to hold it up because I didn't want to have to disinfect my ipod before I could use it again. Then my son helped me place it in the little one. Their poop was dried out so there wasn't a problem. The little ones were fed every other day and the large on was fed everyday.