Slightly used Callaham Vintage Replacement Strat premium upgrade Tremolo bridge that fits Mexican Standard Strats. It utilizes the original bridge plate, but every other part is in the kit. From the Callaham website: Includes Callaham Mexican Standard Block enhanced With your choice of virtual pop-in trem arm & tip (Please Specify) Callaham Vintage Stamped Steel "CG" Saddles for 2 1/16" spaced bridges with stainless steel screws & springs 3 Stainless steel top plate screws Callaham 6 hardened pivot mounting screws 4 Tremolo Springs Allen Wrench I've also included a spring claw and screws. I used it for a short time on a Road Worn Player Strat. SOLD: thanks @Dogfood1 !