Mondi Propagation Trays w/ Holes make expanding plant quantity a breeze. These durable 10 x 20 trays have been constructed with thick plastic for UV protection and durability. They have also been designed to include deep, continuous channels and 'level fit' wide ridges that will prevent water from pooling and provide better stability for propagation media. Also comes with holes to ensure proper drainage. Mondi Propagation Trays have this special design to facilitate plant growth but are also crafted with convenience in mind. Professionally engineered tray-ends add extra strength, making them easier to carry and move. It is also easy to nest and separate trays. Mondi Propagation 10 x 20 Trays make both plants and horticultural hobbyists/professionals happy!