STEELMASTER Steel Card File Boxes holds up to 900 index file cards and fit the most popular index card sizes. The full piano-hinge lid allows complete access to all contents. A follower block and compressor lock keep cards upright no matter the number of cards. STEELMASTER Card File Boxes are coated in black with a scratch and chip-resistant powder finish. Made in the USA with more than 50% recycled content, this is a STEELMASTER 'go-green' product. Since they are made in the USA with more than 50% recycled content, they are a STEELMASTER 'go-green' product. Behind the STEELMASTER name stands 70 plus years of metal fabrication experience. Serving the retail, specialty, hospitality, and banking Industries, STEELMASTER products are built to perform and made to last. Each STEELMASTER product is constructed of sturdy, heavy gauge material that is designed to stand up to daily use.