About This Product The Master Lock No. 527D covered solid body padlock features a 2 in wide black vinyl covered body for scratch and corrosion resistance. The 5/16 in Dia shackle adjusts from 2-3/8 in to 5-15/16 in long and is made of vinyl-clad hardened steel, offering extra resistance to cutting, sawing and surface marring. The 4-pin cylinder prevents picking and the dual locking levers provide resistance against prying and hammering. The limited lifetime warranty provides peace of mind from a brand you can trust. Highlights Removable adjustable length shackle from 2-3/8 to 5-15/16 in provides maximum application flexibility Black vinyl covered body for scratch resistance Made of corrosion-resistant materials Vinyl clad steel shackle helps prevent surface marring 4-pin cylinder for added pick resistance Matching colored key head for added convenience (5-3/8" LS Bike Lock - 6249197 - 527D)