Swiss Corner Clips
Frame any size or shape picture. Spring loaded arms of polished brass clamp and hold together any thickness up to 3/8 in. of glass, picture, mat, and any backing. Requires the rigidity of the glass and backing board. Spring loaded corner clips can be use to frame any size to the size intended plus one hanger bracket, #4600 Corner Clips for any size to 30 in. x 30 in. contain four corner clips, cord, and hanger bracket.side clips, and one hanger bracket.
BC Imports Swiss Corner Clips 30 in. x 30 in. silver - B004BN9SMS