The JZ features a 7A-style diameter with a long, thin neck making it the ultimate jazz stick. The oval bead produces a dark, warm tone that is suited for the most intricate ride cymbal work. Shira Kashi Oak is a dense and heavy wood providing a sturdy feel in your hand and excellent ride cymbal articulation. Sticks made of this Japanese Oak are exceptionally durable and usually last longer than other types of wood. Shira Kashi Oak is a dense and heavy wood providing a sturdy feel, excellent articulation, and exceptional durability. Diameter: .512" Length: 16" Oval wood tip provides a dark, warm tone suited for multiple applications Long thin neck for a fast and responsive rebound All ProMark drumsticks are designed and manufactured in the USA to the most stringent quality controls in the industry