13" H. Planter holds a 4" Growers Pot, Metal planters are constructed of steel with a poder painted coating. Most heads and tails bob on springs. The planters do not have drainage holes so that they may be used indoors. Use a hammer and nail or a drill to add drainage holes. The rings on the large planters will also hold a clay or terra cotta pot. A protective coating may be sprayed on to preserve the finish. No Tools are necessary for assembly. Made for indoor and outdoor use.