We stock all 3 grades of Chalk Stix bars. The standard Chalk Stix is a high-quality tubular bar that’s won a lot of A-Mains the last few years. Chalk Stix 2 is a gun-drilled torsion bar. Gun drilled bars are better than tubular bars. Chalk Stix Maxx is a gun- drilled bar that undergoes a tedious, extensive, and state-of-the-art metal treatment process that takes several hours. These bars are made of the highest quality material available and are heat-treated using the latest technology.