Extra Strength, Standard Depth 1020 Trays with Holes by Bootstrap Farmer. Heavy Duty. Reusable. Dishwasher Safe - 5 PP plastic. BPA Free. 50-pound weight capacity. Food grade. Limited 2-Year Warranty. Recycled post-consumer plastic. Made in the USA. For use with microgreens, wheatgrass, seed sprouting, seed propagation, hydroponics, and soil.