... Chinese needlepunch firms2, has through the ISO9001: 2008 quality system certification5. has the barb: 1 barb, 2 ... 30gg, 32gg, 36gg, 38gg, 40gg, 42gg 15*18*36*3.5 R222 GF3037gauge working part , TriangularGauge Shank, 15 ... in mm), R ( Barb Distance in Millimeter is 6.36 )No. of barbs on first edge, 2No. of ... , 2 triangular felting needles (Guaranteed 100%+High quality+Competitive price+fast shipping)