Index card boxes feature an innovative lid that has a special lid to hold cards in a propped-up position for hands-free reading. Distinctive upscale design enhances any office. Durable card box is made of extra-durable plastic for lasting performance. Box is designed for use with 4" x 6" index cards and guides. Oxford Plastic Index Card Boxes with Lids, Black, 1 Each (Quantity) Innovative lid holds cards in a propped-up position for hands-free reading Distinctive, durable, black plastic, upscale design enhances any office 400-card capacity Overall dimensions: 6"W x 4"H Black