These PB28 planter bags are 125 microns thick, and each bag holds 12 litres of potting mix. They are durable and won’t rip which makes them great for handling. The drainage holes are well spaced to ensure excess water gets away quickly. They are a versatile size that are perfect for shrubs and growing on small trees. They are also often used for growing mushrooms and tomato plants as well as Christmas trees. Each bag has the size printed on the outside and each pack