Add beautiful martin housing to the end of your boat dock with the help of this robust and handy S&K Dock Plate for Aluminum Tri Tel Poles. The robust, steel adapter is specifically designed for use with your triangular, three section S&K telescoping martin house pole, allowing you to helpfully place it above the water line instead of in your yard. The 12" long and 6" wide, steel plate at the base of the item affixes to your boat dock or wooden deck easily thanks to its three predrilled holes along each side of the plate, while a piece of 1.25" outer diameter steel extends 15" above this plate to perfectly supports the C section of your existing triangular three section telescoping pole. Included sheet metal screws keep the staunch pole safely secured to the adapter, while the robust steel construction remains durable for repeated, reliable use at your dock location. Offer wonderful martins a reliable shelter near your water source with this Dock Plate for Aluminum Tri Tel Poles. Made in the USA.