Ball Stylus 3.9mm - Tip Only.
5/32" Steel ball on tip end is great for burnishing, shading, or drawing. Holds heat well giving more consistent burns. Needs a bit of extra heating and cooling time over most tips.
Will only work with the Binding-Post Interchangeable-tip Pen #BPH.
Use of heavy duty cord is recommended. Razertip's brass brush is perfect for cleaning these tips.