Boardstix is the official pen of action sports and lifestyle. Boardstix uses a water based acrylic paint. It is safe and non-toxic. Inks have been approved by FHSA regulations and Conform to ASTM D 4236, which is the standard for all inks and is made in the USA. Pens are available in 5mm Chivel Tips, Flat Broad tip, and 3mm fine tip.