Pyrex Kielwood Fuze Shaft 

Due to its 100% carbon fiber construction, the Kielwood PureX Fuze Shaft offers natural low deflection and durability without sacrificing the sound and feel of traditional wood shafts. With a shaft measuring 11.75mm in diameter, this technology ensures first-class performance to give you an edge against your competition. This product is available in 5/16x18 and unilock joints.