High Quality Pair of Solid Steel Hinges with a Antique Brass Finish. 4" x 4" inches Square with 5/8 in radius corner. Residential Ball Bearing Door Hinges that include matching screws, 4 Holes in zig-zag pattern, gauge .097"(2.5 MM). Typical use: 1 5/8" to 1 3/4" thick doors. Ball Bearing hinges provide smoother operation, prevents squeaking noises, reduces metal to metal friction providing a longer life.