The Island Anchor Shallow Water Anchor Pole Mount securely holds your pole for quick and easy anchoring. ID 1-1/8". Accepts 3/4" and 1" poles including poles with 2-piece couplers. Made from 3/8" thick anodized aluminum for strength and corrosion resistance. Innovative design allows the pole holder to be quickly and easily removed. Proudly Made in the USA by Salty Adventures.