Specification: Color: Silver Material:Metal Type: Single locking tremolo bridge String Spacing: 10.4mm/0.41” (Approx.) Tremolo bridge set can replace your worn out guitar parts Compatible for: for ST Guitar These are all metal with a gorgeous finish, and extremely durable This set includes a tremolo bridge with mounting fittings, easy to install Package Includes: 1 x Bridge 3 x Springs 1 x Spring Claw 1 x Tremolo arm 2 x Wrench 2 x Screws(for Spring Claw) 2 x matching studs 1 x Screwdriver 1 x String winder 3 IN 1