Side Filler lug kit - 4"x8" for filling in the side openings when starting or finishing a wall.
The grout line should be lined up with the panel next to it when using in a box mold or on a corner.
With a 36" tall wall panel, there are 2 lugs needed on either edge to complete so you will want to order an extra single matching lug.
With a 24" tall panel it is either 1 or two lugs to complete an edge, 3 total.