1. With brass roller saddles, height adjustable.2. Both Bridge and Tailpiece are curved to accommodate the radius of the neck or for use on an arch top guitar.3. Fits for , , SG electric guitars...4. Roller saddle to reduce friction and wear,reduce string breakage,help you stay in tune.Bridge Size : Width (17mm) Length (84mm).String Spacing: 10.1mmTailpiece Size: Width (17mm) Length (100mm)Tailpiece Spacing between 2 studs (82 mm. from center to center)Colour:silverMaterial:copperPackage Contents:1 x Roller Saddle Bridge & 2 Studs1 x Tailpiece & 2 Matching StudsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.