Composed of resin and natural stone and is UV stabilized so it will keep its color in the bright sun for years! This planter is frost resistant so it won't break or crack so easily in the cold winter months and it is BPA free and non-toxic so you can grow your vegetable or herb garden in these planters. Feature it indoors or outside on the patio or deck, this planter is lightweight and durable. It also comes with a water minder reservoir drainage system insert that keeps plants hydrated. The rubber removable stopper is included as well so you can grow your plants indoor or out.