8in1 Ecotrition sank shack house is a natural hide away. These unique 3-in-1 wood-look thatched roof house pieces provide a fun play environment and a great tasting treat while helping to promote healthy natural chewing instinct. 100 Percent edible made with fresh alfalfa and golden honey. Natural hideaway for guinea pigs and rabbits. Ingredients are pine wood shavings, cassava starch, alfalfa, straw liquid mix, cotton thread, bamboo and paper cord. Available in large size.