Solid brass. Corrosion-resistant case with satin brass finish. Brass cylinder, pin tumbler locking mechanism. Case-hardened steel shackle. 2 nickel-plated brass keys included. No. 120T: Twin pack, 3/4'' wide, 3-pin tumbler, 5/32'' shackle diameter, clearance: 7/16'' vertical and 3/8'' horizontal No. 120Q: 4 pack, 3/4'' wide, 3-pin tumbler, 5/32'' shackle diameter, clearance: 7/16'' vertical and 3/8'' horizontal No. 130D: 1-3/16'' wide, 4-pin tumbler, 3/16'' shackle diameter, clearance: 5/8'' vertical and 9/16'' horizontal No. 140D: 1-9/16'' wide, 4-pin tumbler, 1/4'' shackle diameter, clearance: 7/8'' vertical and 13/16'' horizontal No. 140T: Twin pack, 1-9/16'' wide, 4-pin tumbler, 1/4'' shackle diameter, clearance: 7/8'' vertical and 3/16'' horizontal No. 150D: 2'' wide, 5-pin tumbler, 9/32'' shackle diameter, clearance: 1'' vertical and 1'' horizontal No. 160D: 2-3/8'' wide, 5-pin tumbler, 11/32'' shackle diameter, clearance: 1-1/8'' vertical and 1-1/4'' horizontal