Heavy Cast Iron core with Gold Anodized Aluminum Cover Holds pole up to 1 1/4 in. Diameter. Base Diameter 11 1/2in. Please Note Shipping Charges: Because of its size, this pole is subject to an additional handling charge of $14.95. This will be added to the Standard UPS Shipping rate determined by the value of the order. When multiple units are purchased the actual cost of shipping will be calculated by customer service. The shipping rate may be reduced depending on packaging requirements.