Set of 30 prepared microscope slides with specimens including fungi, plant organs, human and mammalian tissues, cells, and insect parts for biology education. Clean, clear, and well-stained specimens are suitable for use with stereomicroscopes, mini microscopes, pocket microscopes, and portable microscopes. Microscope slide size: 1 inch x 3 inch x 0.04 inch (25mm x 75mm x 1mm) with ground edges. Prepared slides are ideal for children aged 8-12 years old, making a great educational gift to explore biological science. Also suitable for home education and hobby use by teenagers and adults. Color: as shown in photo Material: Glass Package Contents: 1 set of children's microscope slides (30 pieces, slides are selected at random and cannot be customized) Only the items listed above are included; other products are not part of this package. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.