The large whiteboard is available in different sizes and it comes with a magnetic storage bin, 4 premium color markers, and an eraser. It has a porcelain coated 28 gauge steel surface that's laminated to 0.50" thick fiberboard with a Mylar film backing. Made in the USA, this item pairs perfectly with the Nexus series mobile whiteboards by Ghent. Quality guaranteed by a 10-year manufacturer's warranty.