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. 50 round cells in a sheet, 1.88" wide, 2.31" deep. 8819 Plug Flats, 50 cell Item DiscountedFrom Quantity A: 5 sheets $11.50 B: 100 sheets $185.00