This 90 degree metal brace will effectively hold up your shelves. Dimensions: 1" x 1-3/4" Center to Center: 1-1/4" Length: 1-23/32" Height: 31/32" Depth: 1" Material: Metal (20 gauge), Zinc plated SCREWS ARE NOT INCLUDED (#8 Pan head recommended) This 90 degree metal brace will effectively hold up your shelves.