This is electric guitar-style hard-tail bridge, but made for 3-string cigar box guitars! It took us a long time to find a source for these, but now we got '! These bridges are "top-loading" style, which means the strings are fed through the back plate of , then up and over the saddles. No drilling through the instrument/box is required! Each one is mounted securely by four screws, and a small Hex Wrench is also included for adjusting the small set screws control string action height. See the listing photo with measurements (in millimeters) for more size specs. Color: Silver Material: alloy Size: 50*40*13mm Chord spacing: 12mm Package Contents: 1*Guitar Bridge 1* wrench 4* screw Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.