-Tier Guide Rack Metal 29 1/8 x 10 3/8 x 20 Black – Best possible for credenzas to stay necessary books or reviews shut to hand. – The 12 half of” prime bottom shelf simply homes 8 half of” x eleven” binders even as the open best shelf gives even better peak. – A closed again prevents books from sliding off. – Heavy-gauge Metal building for optimum potential and steadiness. – Powder-covered end is scratch- and chip-resistant. – Guide Rack Sort: -Tier Choice of Sections: 2 Colour(s): Black Subject material(s): Metal.