Piling Post is custom cast to fit over your 4x4 inch post. Approximately 36 inches by 10 inch piling. Can be made custom sizes for unique arrangements. The post is a cast and finished item, like a column, with a square PVC liner embedded to slip over your 4x4 post. The materials are our same durable epoxy resin. The grid image of custom drawings may explain better. When you order with our Pelican Mailbox we will custom drill holes in top to fit. When ordered separately is best to drill your own holes to fit best. There is embedded wood block that a Spade bit will drill into. Can permanently attach pelican mailbox with Epoxy or Gorilla glues. You can use a lag screw to attach to your post if desired. • Proudly Made in USA exclusively by Chris Dixon Studios. ----- Please contact for availability before purchasing! This is an artist edition and may take from 1-6 weeks to create another if recently sold. MADE IN USA! Every reasonable effort will be made to satisfy your purchase, just contact me for any help. ----- Buy with Confidence, we accept: Visa, Master Card, American Express, PayPal, Wire Transfer, Western Union, Money Order, Electronic Check, Check, or Cash. Payments must be received and clear the bank before shipping! ----- International Shipping = Actual cost + USD $25.