These Bag Adapter Plates allow you to mount a lower airbag with only 2 outside mounting holes to a bracket that will only accept a bag with a center hole. Normally, if room allows, you would just drill 2 new holes in the bracket. Sometimes that is not an option and thats what makes these brackets so awesome. The center bolt in the adapter plate is flush on the top and TIG welded in place so you can easily tighten a nut on the bottom without it spinning. The 2 bolts that mount to the airbag are countersunk into the bag adapter plate so they wont interfere with the lower bag bracket. Sold in pairs.