Marshall's Ferret Hammocks are designed specifically for the curiosity and playfulness of ferrets. Marshall's Hangin' Monkey Hammock allows ferrets to nestle in for a nap or play a game of peek-a-boo. There's room enough for two or three ferrets to have a swinging' good time. The Pirate Ship has several ins and outs for quick escapes, and it even has its own distinctive flag. The fun and whimsical hammocks clip easily to most cages and are made from washable fleece.