Also known as Pro Trays. Fit into standard 1020 Trays for easy handling in the greenhouse. Made of lightweight black plastic with bottom drain holes. 72 round cells in a sheet, 1.50" wide, 2.31" deep. 8820 Plug Flats, 72 cell Item DiscountedFrom Quantity A: 5 sheets $9.90 sale, was $11.00 B: 100 sheets $155.25 sale, was $172.50