The Bonkote reusable Flux Pens are mess free and easy to use. Sold by OC White these flux pens are ESD safe and are RoHS compliant. Each pen cartridge is lined with a polymer plastic, which provides for more repeated use and less degradation. All flux pens are easily cleaned with water or alcohol depending on your flux being used. All our flux pens are compatible with wash, non-wash and strong acid flux. The pens have flexible shafts for easier control and manipulation. The Bon102 Flux Pens have a fine point nylon brush tip (BR102). The tip is 13.5mm long and 3.5mm wide, helping to eliminate dripping or flooding. Replacement tips are available. All units sold in packs of 5.