Color: photo color Material: Glass Package Contents: 1 set of children's microscope slides (30pcs, slides are sent randomly, which cannot be chosen the specific .) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Prepared microscope slides with specimens, suitable for children aged 8-12 years old, a great gift to teach your children the wonders of biological science, and also suitable for home education/hobby use for adults and teenagers. Clean, clear and well-stained microscopes can be seen on stereomicroscopes, mini microscopes, pocket microscopes, and portable microscopes. Microscope Specimen Slide Specimen Standard Size: 1 inch x 3 inch x 0.04 inch (25mm x 75mm x 1mm) with grounded edge. Set of 30 prepared microscope slides with children's specimens including , fungi, plant organs, human, mammalian tissues, cells and insect parts for biology education.