Fits most Wilkinson's 10.5mm Strat Push-In tremolo bridge, also fits some Squier or Imported Strat bridges
String spacing: 10.5x5= 52.5mm (2-1/16 inch)
Block is made of zinc metal, 13mm thickness, 40mm depth, this size will need a thick body, will fit Mexico/USA Standard Fender Strat, will NOT fit Squier guitar's thin body
Push-In tremolo arm socket will need a 5mm diameter push-in tremolo arm. We sell it separately