DescriptionPerfect for classroom teaching, chemistry experiment, and also for laboratory use, these petri dishes can fit your different demands better. Light weight, easy to use , high chemical stability, with droppers, bring you much more convenience. The petri plates aredurable and sturdy for long lasting use, not easy to deform or break.Features-Color:Transparent -Material:Plastic -Size:8.50X8.50X1.50cm/3.34X3.34X0.59in -Size:15.50X1.20X1.20cm/6.09X0.47X0.47in -Capacity of the droppers: 3ml. - Transparent design, allows you to easily observe your samples inside these petri dishes and improve your efficiency.-Professional petri dish for laboratory experiments, biological and scientific research, school teaching use, etc, better satisfy your demands. - Simple structure, light weight makes these petri holder very easy to clean, give you a pleasant using experience. - Easy to use and take, with the droppers, suitable for the transfer operation of all kinds of liquid.- Adopted of plastic material, the petri dishes are practical and durable for long time use, bring you much conveniences.