The 30kg granite parasol base with wheels is a smarter more deluxe way to secure your parasol. This parasol base will fit all our center poles up to 48mm, the adapters included will allow smaller poles of 38mm to be used. Additionally, the parasol can be held in place with tightening caps which will hold the parasol in place. In addition, this granite parasol base comes with telescopic handles and wheels for easy transportation. Dakota Fields