Slide-A-Shelf AMC-PL-DDU-21W18D16H-F Baltic Birch Double Dek System with Full Extension, 21" x 18" x 16" Durable and easy-to-clean surfaces, wrap-around 7 ply Baltic birch sides, with a tough uv cured poly-urethane finish; manufactured in the usa Vertically adjustable push-pull second level for creating extra storage space Metal full extension ball bearing slide rails rated at 100 lbs.; no plastic components You will never again have to bend or stoop or get on your hands and knees to reach items you store Easy to assemble and install with just a screwdriver; all hardware is included