Dishes are constructed with crystal-grade polystyrene and a flat bottom surface for distortion-free optics

• Flat, distortion free optics
• Stacking rings allow for easier stacking and handling
• Durable construction for stable dish manipulation

Small diameter saves media and space. Easily sealed with tape for collecting and transporting specimens. Polystyrene. Sterilized by gamma irradiation. Packed 20 per bag.