The Viagrow 30 gal. 4 Mil Thick Plastic Grow Bags for Potting, Seedlings and Rootings are a low-cost alternative to plastic pots. They are economical and easy to use by the residential greenhouse grower. These heavy-duty reusable grow bags are made from a durable plastic that provides for a longer life. The bags have pre-punched drain holes and they are self-standing when filled with media. Widely used in greenhouse drip irrigation applications, they work very well with most all mediums and are excellent for bedding plants, tree seedlings, tomatoes, bell peppers, cucumbers, etc. They come 10 to a pack and are shipped flat. Viagrow nursery grow bags are Bisphenol-A (BPA) free and food safe, making them ideal for growing fruits and vegetables. Grow bags are made with 4 mil plastic making them super strong and durable. The grow bag's white exterior reflects light, keeping root area cooler than regular pots. Grow bags are made from 100% pure virgin plastic and come with pre-punched side and bottom drain holes for excellent drainage and aeration! Stock up on durable plastic gardening bags today.