Product detailsReinforced by BambooJikishin III is for intermediate to advanced users Glass bows made with fiberglass excel in bending elasticity, torsional rigidity, and compatibility with core materials, creating a unique softness when entering kai (full draw) and producing a crisp release that maximizes the function of the tsunomi.The Jikishin III Bamboo features a three-layer structure with two wooden core layers and one bamboo core layer using S-glass.This intermediate to advanced model uses carbonized bamboo core material on the compression surface, boasting the feel of a bamboo bow while delivering arrow flight and accuracy that rivals carbon bows. ※Each synthetic bow comes with a bow sleeve, but the color can't be specified. Please note that although the product photos show strings, the bowstring is not included. If you require a bowstring, please place a separate order.