The concrete parasol base is available in 15kg or 25kg, they both accomodate different sized poles with the adjustable hole. The 25kg base is recommended for bigger standalone parasols. Parasol Base Dimensions: 15kg parasol - 48cm diameter x 15cm high. Will accept parasols with a pole diameter of up to 40mm. 25kg parasol - 55cm diameter x 17cm high. Will accept parasols with a pole diameter of up to 40mm. Parasol Base Features: Sturdy painted concrete base to hold parasols and other items securely Domed Design Colour - Black