Nature First Grassy house is natural and perfectly suited for the needs of small pets. Nature First grass house is great for a place to play, exercise and sleep. The grassy house is made with natural grasses and is ideal to use as a nest but also safe to nibble helping promote healthy gums and trim teeth. 100% Natural Natural Nest Fun to nibble and gnaw Aids teeth and gum health. Boredom buster Approx size 11cm