Solid brass body with chrome-plated, hardened steel shackle and multi-pin tumbler mechanism. Includes 3 brass keys. Horizontal shackle clearance: MSS03L 22mm, MSS04L 26mm. Vertical shackle clearance: MSS03L 56mm, MSS04L 75mm. Shackle dia: MSS03L 6.5mm, MSS04L 8mm.