1. Made of brass. These saddles are a great upgrade/replacement for anyone, they can be used for Hardtail Bridge, Tele or Strat Bridge. 2. No burrs or burrs; brass nuts provide better tone and securely hold your strings 3. Fits Strat or Tele electric guitars and can be used with hardtail bridges and other bridges with 2-1/16inch (52.5mm) string spacing 4. The nut helps prevent string breakage, improves tone and sustain, and keeps your guitar in tune Saddle bridge weight: 8.5g/pcs Colour:silver Material:brass Size: 6 x 8 x 1cm Package Contents: 6x Brass Saddle Bridge 1x wrench Only 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.