PetlinksFlower Sack Crinkle Hideout Sack Cat Toy

My cat loves his old tunnel but i am not sure this is big enough. He is a tall 20# tabby. How big are your cats who love this? Will my boy fit?

Has anyone received the GREEN one? It seems like everyone that I know always get the /Navy Blue/Burgundy one..

Does spraying water help the effect on the bag? First time buyer, not looking for sarcastic comments

What kind of batteries does this thing use?