AmScope PS25-BSC12-72P100S22 25 Piece Microscope Prepared Slides, 72 Piece Pre-Cleaned Blank Plate Slides, 12 Piece Single Depression Concave Slides and 100 Piece Coverslips 25pc prepared slides of plants, insects and animal tissues Dimensions: 1" x 3" (25mm x 75mm) Sample name is marked on each slide Includes 72 pre-cleaned blank plate slides and 100 coverslips Includes 12 single depression concave slides