Metal Frame Hardware Package includes everything you need to assemble a Nielsen metal frame. Angles join the frame sections together. Springs clips secure art materials into frame channel. Hangers (wire not included) and spongy wall protector pads for hanging picture frame on wall. Pkg: 10 spring clips, 4 angles with screws, 4 backing angles, 2 wall hangers with screws, 2 wall protector pads.