The New Age Pet Sonoran Tortoise Pen is made with ECOFLEX a proprietary composite blend of recycled polymers and reclaimed wood fiber by-products. The ECOFLEX material is non-toxic eco-friendly & impervious to moisture & odor making it the perfect material to keep your pet happy and healthy. All New Age Pet outdoor products are backed by an unrivaled 10-year limited manufacturer warranty. Adding this pen to your New Age Pet Sonoran Tortoise house is the perfect way to give your tortoise extra space to stretch his legs. Made of ECOFLEX & NeveRust stainless steel wire the perfect pairing of materials to provide you with a durable product for years of maintenance free use. NewAgePet products are easy to assemble easy to clean & easy to LOVE!