This is a package of 6 Super Hinge Points from Robart. These hinges are for 1/4 scale and other large scale uses. These install by drilling a 3/16" hole and inserting the hinge with a drop of glue. To make sure that your hole is straight and centered use Robart"s Hinge Point Drill Jig (ROBR1319). Also available in a package of 15 (ROBQ2510).