Each set includes twelve different slides. Slides are glass.

Slides for this set include: Silver Berry Scaly Hair, Onion Rind, Fern Spore, Herbaceous Stem of Bitterweed, Voluble Stem of Sponge Gourd, Xeromorf Leaf of Nerium, Monocotyledonous Stem of Corn, Dandelion Ear, Tree Cell, Camellia Leaf Section, Woody Stem of Pine and Pine Needle c.s.