The Mark-10 G1072 Opening force fixture set, Capacity 50 lbF (250 N) is used to determine the opening force of flat folded cartons along their score lines. Ideal for numerous applications in the packaging, food and beverage, medical device, consumer products, and many other industries. Upper and lower fixtures are easily removable. Use the Mark-10 G1072 with a choice of test stand and force gauge to create a complete opening force testing system.