Ultra-Durable, Top-Quality BPA Free Plastic Trays No holes. Will last you many years Perfect match to our heavy duty microgreen trays with holes Outer Dimension: 21" x 10.75" x 1.25" 2 Year Warranty guaranteed not to break so you can focus on growing and not replacing equipment Made of recyclable Polypropylene (PP #5) leach resistant plastic with no harmful additives Perfect plant germination tray for heat mats, humidity domes, microgreens, wheatgrass, fodder, hydro