replacement: this thread zap II replacement tip is the replacement of the pen head, quick replacement, simple operation, will not delay you anything. Fine workmanship: this thread zap II replacement tip is made of High- materials, the tip of the pen is thin, can better help you to position, complete the exquisite handicraft. Compact and convenient: this thread zap II replacement tip is very compact, when it is not applied, it does not occupy a position on the side, save space. include: 4 pieces thread zap II replacement tips. it can satisfy your daily use and replacement needs Instructions for use: after using the thread zap II replacement tips, when the tungsten wire of the pen nib has not been completely cooled, touching objects or skin will cause scald.the tungsten wire of the pen nib becomes soft and easily deforms after heating. therefore, please cover the pen cap when it is not in use to prevent it from being broken and unable to be applied normally. Material:Metal colour:black Package Contents: 4 * Thread Tips Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.