All items are  handmade in the USA with your choice of anti-pill fleece or cotton exteriors. The interior is anti pill fleece with hidden seams reinforced with zigzag stitching to ensure the highest quality for the safety of your sugar glider. Please note it is your responsibility to frequently examine your cage set items for any holes, pulled stitches, or excessive wear as it will affect the safety and the structural integrity of your cage pieces. See the Sugar glider care section of the FAQ for more information on how to care for your cage pieces.