ITEM NAME:Roller Saddle Tune-O-Matic Guitar Bridge for Gibson Les Paul Electric Guita B3X9 Roller Saddle Tune-O-Matic Guitar Bridge for Gibson Les Paul Electric Guita B3X9 Roller Saddles Style Tune-O-Matic Bridge for LP style electric guitar. Brass roller adjustable saddle location for intonation via Hex screws which lock saddle in place. With brass roller saddles,height adjustable. Adjustable saddle location for intonation via Hex screws which lock saddle in place. 100% Brand New Wrench: Random colors, random colors cannot be selected colour: black Material: Metal size: Bridge Size: 3.3inchx0.6inch/85mmx17mm String spacing: 0.41 inch/1.03cm Packing size: 10*10*5cm Stud height is approx.: 33.5mm. The Bridge distance of two post: approx.75mm. The Bridge distance from E to E is approx.50.5mm. Large diameter Metric studs and inserts included approx.7.7mm Overall insert length is including lip: approx.21mm length not including insert lip: 18.5mm Package Contents: 1 * guitar bridge 2* studs 2 * Hex wrenches Only the above package content, other products are not included. Note: Light shooting 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.