Twisted wire handle for hand use. | For industrial maintenance, agricultural, workshop, machinery etc. For decarbonising and heavy duty cleaning use of tubes, struts, awkward places etc. | | 7 Piece Set Contents: | Tube brushes: 1x 10, 15, 20, 25 and 30mm diameter. | Steel bristle slimline brushes: | 1x curved and 1x straight.