Blue Extra Strength Shallow 1020 Trays No 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. For use with microgreens, wheatgrass, seed sprouting, seed propagation, hydroponics, and soil. Blue colored extra strength BPA-free 1020 trays by Bootstrap Farmer help professional and commercial growers stay organized.