GREENGUARD Gold certified. Versatile, portable storage for (12) puzzles or remove (6) shelves and store (6) knob puzzles. Constructed from Birch Plywood, and coated with our exclusive Tuff-Gloss™ UV finish. A recessed back for added strength, stability, and beauty. Fully rounded corners and edges for maximum safety. 16-7/8"H x 15-13/16"W x 13- 15/16"D. Fully assembled. Lifetime warranty. Made in the U.S.A.