The Lab Aid system allows convenient storage and retrieval of microscopic slides or transparencies. The 25-mm drawer section is designed to hold 26 mm x 76 mm microscopic slides. Each section contains 14 drawers, with a capacity of 465 slides per drawer. The 50-mm drawer section is designed to hold 50 mm x 50 mm transparencies or 76 mm x 50 mm microscopic slides. The drawer section is complete with 7 drawers, which will accommodate 271 slides per drawer. The system is constructed of welded steel for durability and requires 0.23 square meters of floor space. Slide backstops easily attach to the inside of the drawers to hold slides in place when drawer is not full. Also available is a slide liner (spring) to hold slides upright during the drying process.