Designed by 5th degree black belt, Mike Chat, the Performance Series weapons are great for basic, BBC, and Leadership programs. Jahng Bongs are precision designed with a perfect combination of size and weight for speed and power. Features perfect ratio of diameter to tapered end for precision movement, mirror chrome polish and clear coated, and coated tips for protection and presentation. Available in five sizes in 6” increments to suit all heights. Approved for ATA Tournaments