These parasol bases for centre pole parasols are fitted with plastic tube and water drainage. The unique adapter system ensures parasols with a tube diameter up to 48mm are always kept straight. The anti-slip system ensures that the parasol can not spin in the wind. Granite parasol bases are specially selected and offered in a polished or a burned finish. The optional swivel castors make your parasol more mobile in the garden. This granite base is compatible with our range of Riva Round Parasol Models.