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 5" x 8" index cards and guides.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 5" x 8" index cards and guides.