10½x21x2¼" grey plastic trays, often called 1020 Trays. Use with domes to hold in heat and moisture. 8823 Plant Trays with Drain Holes Start ordering or resume an order Item DiscountedPrice A: 5 trays (2 lb) $12.00 B: 100 trays (30 lb) $205.00 ($194.75)