The granite base is available to suit your Rio and Copacabana Octagonal umbrellas. The solid grey granite base weighs 28KG and measures 45 cm x 45 cm and has a central mast post 40cm tall. The granite base plate also comes with 2 wheels for ease of movement. Our centre post bases will keep your umbrella safe. These our not included with the Lux Street outdoor umbrella collection. These granite bases are sold separately.