Memorandum Markers Made of durable, specially coated paper board.   They indicate the place from which a slide has been removed. Assure quick refiling in proper sequence. #C108 for 3" x 1" slides. (100/package, 1,000/box) #C108K for 2" x 2" Kodachrome slides (100/package, 1,000/box) #C108E for electron microscopy films (100/package, 1,000/box)     Compressor Follow Blocks Made of superior natural rubber (not cheap   plastic foam). Keep slides snug and upright when drawer is not full. #C109 for 3" x 1" slides #C109K for 2" x 2" slides #C109E for electron microscopy films     Strongest Base Heavy duty base raises cabinets 4-3/4" off floor   for easier access and protection from floor soil and cleaning tools. Compatible with all 15-3/4" wide cabinets—micro-slide, 35mm slide and electron microscopy film. Purchase separately or included free with Catalog #C112B (12 micro-slide cabinets). Available in Green, Grey or Tan.