Made of clear acrylic with white polycarbonate posts, measures 11.1" long x 8" wide x 8.5" tall. Base is 0.38" thick Holds about sixty (60) 90mm petri dishes Visibility from all sides enables the culture to be seen and checked during incubation 4 holes drilled in separator wall for easy gripping during transport This petri dish rack is made of clear acrylic with white polycarbonate posts, with a capacity to hold 90 mm sizes petri dishes. Will hold about sixty (60) 90mm petri dishes. Acrylic Base measures 11.1" long x 8" wide x 8.5" tall. Base is 0.38" thick. Not autoclavable.