Storage Box features hinged lid for protection while providing easy access to slides Transparent lid provides clear view of the contents without opening Removable draining tray holds 100 slides in pre-numbered slots Tray provides speace between each slide so slides can be tilted forward and back for easy identification Tray can accomodate up to 200 slides (2 in each pre-numbered slot) on end for space savings Removable draining trays are also available separately