Nontackable back enclosure attaches to HON10500 Series 72" wide Stack-on Storage for a more elegant look and support for items that need to rest near the back of your worksurface. This series offers well-built, cost-effective wood furniture for a growing business. Back enclosure is made with laminate that matches your hutch. Durable, easy-care, thermal-fused laminate resists scratches and stains. Using the back enclosure still allows efficient cable management. When connected to the stack-on storage unit, the back enclosure features a full-width, 1-1/8" slot at the bottom for routing cords and reaching wall electrical outlets. All furniture units are sold separately. Furniture is certified by SCS to be in compliance with specific, indoor, air-quality emission requirements and meets or exceeds ANSI/BIFMA and ISTA performance standards.