The Nature First Willow Wigwam is perfect for small pets, who love to have somewhere sheltered for a sense of privacy. The Willow Wigwam is made with 100% natural willow and is ideal for use as a nest and safe to nibble. Natural nest, fun to nibble and gnaw Cosy place to rest 100% natural Our willow contains low levels of salicin. Ideal size for young syrian hamsters, dwarf hamsters and mice.