Made from BPA free polystyrene, each sheet of these seed starter greenhouse tray inserts has 18 independent planting pots in a 3 cell by 6 cell configuration, with easy tear perforated plastic. Each cell has drain holes. Looking for growing medium? Try our Minute Soil. Tray Insert - 18 Cell for Seed Starting Each cell measures 3.5 inches in depth and 3.5 inches square at the lip. A full sheet of 18 cells measures 10.5 inches wide and 21 inches long. Because the cells taper it nests perfectly in a standard 20x10 inch drip tray for watering and drainage. Each Cell has a max volume capacity of: 26.24 Dry Cu. Inches, 14.50 fl oz or 429.00 ml. 18 Cells Per Sheet - 3 x 6 configuration - With Drain Holes BPA Free Polystyrene - Easy tear perforations Each Cell Measures 3.5 Inches Deep and 3.5 Inches Square at the Rim - Tapers to the Base Each Full Sheet Measures 10.5 Inches by 21 Inches at the Rim - Designed to Nest in Standard 20x10 Inch Drip Trays Designed for Single Use - Seed Starter Tray Inserts Manufactured in the United States of America.
