4pcs Double Ended Scribing Pen for Stainless Steel,Glass Carving,Scribe MarkerDescription: Includes screw on end lid for one side so you know which side has not been used! Material: stainless steel and magnet Length: 14cm Tungsten carbide tip marks hard materials including hardened steel, stainless steel, ceramics and glass. Color: Sliver and Black Package Included: 4pcs Double Ended Tungsten Carbide Scribing Pen Notes: Due to the light and screen setting difference, the item's colour may be slightly difference from the