The Foam Wedge Kit is an "End User Modification" for our IWB, IWB-C and OWB holsters. The kit with come with a section of industrial strength Velcro and the foam wedge. The Foam Wedge attaches to the bottom rear of the holster (against the body). When used, the wedge pushes the firearm towards the body allowing for deeper concealment and added comfort. We designed these for our line of holsters but they can be used on other manufactures as well.