Stanley fatmax spring steel wonder bar pry bars stanley 1 55 527 fatmax spring steel wonder bars are of a spring steel construction for lightweight power and durability they have wider prying edges for better load spread and sharpened pointed prying claws for easy access to sunken nailsthe 1 55 527 has a length of 533mm 21 in stanley 1 55 527 fatmax spring steel wonder bar pry bar 53cm 21in