・Callaham Vintage S Model Strat Bridge Assembly 　(Tremolo Arm is Standard Fender length, parchment white tip) ×1 Vintage reproduction parts made by Callaham Guitars, with springs and arm. - Brand: Callaham Guitars - Model Name: S Model Strat Bridge Assembly - Included: Springs, Arm - Direct import The following is a copy and paste. I hope it will be helpful. ■Synchronized Tremolo Unit ■Vintage Model ■Inch Standard ■Dimensions ・Mounting screw hole pitch: Approximately 56.5mm (2 7/32 inches) ・String spacing: 56.5mm (2 7/32 inches) ■Length (from the tip to the center of the 90-degree bent part) ・Standard Fender Length 6 inches from the tip to the bend ■Thread (length of the thread in the arm mounting part) ・Virtual Pop-In Only usable with Callaham's Enhanced Blocks ■Tip color ・Parchment White ■Contents ・Callaham Vintage Repro Block enhanced ・CCallaham Precision Machined Top Plate ・Callaham Vintage Stamped Steel "CG" Saddles (with stainless steel screws and springs) ・3 Stainless steel top plate screws ・Callaham 6 hardened pivot mounting screws ・5 Tremolo Springs ・Claw and Stainless Steel Screws ・Allen Wrench Thank you for viewing.