Tai Chi Ruler (Chih) and Bang Tai Chi Ruler Basics, DVD available from Amazon https://youtu.be/J_89rO_F4Zw Link to Tai Chi Ruler and Bang explaination by Charles Tauber. Basic Ruler Explanation Rulers and Bangs made by Jerry order by email to Jerry@skyrivertaichi.com Rulers Custom made to size and material $40 Bangs made custom to size and material $25
