The Shimpo FG-M6CBH60U Carton Box Pull Hook 2.4" (60 mm) is simple, yet specialized force gauge attachment for testing the required force to open cardboard boxes and similar packages. Each unit possesses a 2.3” (60 mm) width, and can work up to a maximum load of 56 lb (250 N). This hook has a M6 female connection, enabling connection with any M6 compatible device.