The Jacoby Ultra Pro Low Deflection shaft from Jacoby consists of a veneer construction for a superior feel with unparalleled accuracy and low deflection. The Ultra Pro Low Deflection Shaft utilizes an ultra-light front end, and specialized lightweight ferrule material creates one of the best choices for a high-performing and low deflection shaft. Jacoby Ultra Pro Low Deflection cue shafts are 11.75mm in diameter at the tip.