Kalt Plastic Graduate 3-1/2 oz - 100 cc Tweet Description The Kalt Plastic Graduate is made of thick clear styrene. This one holds up to 3.5 oz or 100 cc of liquid. Details Additional Category Tags: Developing & Processing, Developing & Processing Supplies, Graduates Category: Photography Manufacturer Catalog Number: NPGC35 Product Manufacturer: Kalt Subcategory: Darkroom Equipment