Polypropylene INNOVATIVE DESIGN: Enjoy this unique bed featuring underbed shelving units and including fabric storage bins. AMPLE STORAGE: With several compartments available, storage options are endless! Mix and match the provided storage bins with baskets, and stack books or pillows in between NO BOX SPRING OR FOUNDATION REQUIRED: Save money with this economic and classic bed- your mattress can be placed directly on top of the secure frame 5 YEAR QUALITY WARRANTY ON FURNITURE, 30-DAY SATISFACTION WARRANTY ON ACCESSORIES: South Shore is proud to stand behind this storage platform bed with baskets with an exclusive 5 year quality warranty on furniture, 30-day satisfaction warranty on accessories. Shop with confidence knowing your purchase is always covered. EASY ASSEMBLY INSTRUCTIONS: All products come with a clear assembly document that will guide you through all steps. If you have any questions during the assembly do not hesitate to contact South Shore Furniture for immediate support. This item is shipped in 2 boxes, make sure to have a friend with you