359124 Features: - High quality guitar bridge with 2 locks of the system: locking nut and locking saddles. - Comes with a complete set of installing tools - Easy to install Material: alloy， copper， steel Locking nut size: 43mm Dimension: about 9.3 x 7.5 x 6 cm Suitable for 6 strings electric guitar 1 x Guitar Bridge 1 x Lock Nut 1 x Lock Saddle 5 x Screws 2 x Lifting Screws 2 x Wrench 3 x Spring 1 x Whammy Bar