The "Strap Keeper" provides the solid connection between your guitar and strap that you have been longing for. "Strap Keepers" are easily installed and readily removed. They fit all standard endpin type strap jacks and guitar straps. The "Strap Keeper" will not interfere with the use of standard cables or endpin type preamps. The original Strap Keeper will fit most endpin jacks except Taylor and Takamine.