To provide a gut protective body which is excellent in durability without breaking even when a gut is strung by a high tension, and in addition, can manifest favorable elastic characteristics at the time of hitting.

A comparatively large window hole 13 is formed in the region of a band section 10 between cylindrical sections 9 which become a location wherein at least the gut is strung while being folded back, from among gut protective members 12 comprising the upper layer section of this gut protective body. Then, a flexible expanded section 14, which is integrally formed on the upper surface of a band-form base 8 comprising the lower layer section, is expand-formed from the window hole 13 to the outside of the band section 10 by going through the window hole 13.