Bisphenol A Free Material: Our seed germination trays are made of strong PP material, which is non-toxic, odorless and durable. The seeds germinate easily without soil or chemical additives. You can enjoy healthy and green food at home. Double-layer design: You can easily remove the inner tray from the bottom water-saving tray. Inner trays with small holes provide excellent breathability and help seeds grow faster. Easy to use: Follow the instructions and even beginners can easily germinate. Please don't put too many seeds in the plate so that they don't overlap and moldy. Wide usage: the nursery tray can germinate many kinds of seeds, such such as soybeans, buckwheat, wheatgrass, okra, peanuts, green beans, radish, alfalfa, broccoli. For beginners, it is easy to grow micro greens. Easy to use is suitable for beginners. Even children germinate easily. Food grade PP material, healthy and durable. ~ Tip: Please don't put too many seeds in the plate to avoid overlapping and mildew.