1 Each. Single-sided book cart offers three slanted shelves where you can organize and transport your books and other items. The opening between each shelf measures 12". Sturdy sturdy design features smooth, rounded handles for easy maneuverability and perforated end panels for style and better air circulation. Cart moves easily on 5" casters that all lock for when you need the cart to stay put. Welded steel construction provides a long-lasting, durable product.