Gravity Bike Rack for 6 bikes No bolts ,screws or fasteners required . Independent adjustment arms For level bike storage . Gravity Bike Rack for 6 bikes No bolts ,screws or fasteners required .Independent adjustment arms For level bike storage .Vinyl-coated bike cradles and base protect bikes and floor.Epoxy-coated white finish .Size: L750mmxW750mmxH(160-180 adjustable)mm.