These natural rock planters have been drilled with a 2″ bit. Although they are natural rocks, their individual weight is quite light, but when shipped in mass quantities, increase in shipping price will reflect. They are great for planting several varieties of tillandsias: dyeriana, flabellata, fasciculata, oerstediana, mora, festucoides, zacapanensis, secunda and v. racinae. Please realize the shipping calculator on the website will likely not cover the cost of shipping these rocks. We only use the most economical way to ship heavy boxes (UPS GROUND). We will send a bill, for the actual cost once they are boxed up. Product will be shipped once bill is paid.