2 Piece Set Of Snap And Grip Wrenches That Automatically Adjust To Any Size Pipe, Nut, Or Bolt These adjustable wrenches are called universal wrenches because they will fit absolutely everything They work with all systems of measurement- no need to adjust from metric to SAE With just one hand operation, they to automatic ratcheting Any size nut or bolt, any size household water pipe, they fit it all! They automatically adjust to fit round, square, hex, triangle, and more