The piston hook for aluminum doors 324 is a complement designed to hook the lifting piston and locate it inside the module. It provides all the necessary firmness to be able to locate the piston so that it does not move or run anywhere After installation, it is a piece of steel that has the strength to hold weights easily. Each package contains a total of 100 units for wood or aluminum doors PLUS 7-8-10. Due to their size, it is recommended to keep parts out of the reach of small children and in isolated storage to avoid their loss.