WorldWide Tattoo Supply STRAIGHT SPRINGS will fit onto all tattoo machine that use a angled armature bar. Our springs are sold flat because they require no bending. All our springs are made of high carbon spring steel or blue tempered high carbon spring steel. Back Spring: 3cm (L) x 1.3cm (W) Polished Straight Springs Available in 11 Thickness: 0.013", 0.014", 0.015", 0.016", 0.017", 0.018", 0.019", 0.020", 0.021", 0.022", 0.023".
