Hello. I have a cage that is 19 inches height and 15 inches width. The bars are 1/4-1/2 inch apart and there are 3 levels. The levels are made out of bar like the rest of the cage. Will their feet get stuck in the bars when they walk up the levels? Will they be able to get out of the cage with the bar spaces being so big...or are they big? If it wont work, its for sale for $25 + shipping, PM me if you want it! (It will work for large hamsters, 1 large bird, or a small rat). Picture below.