Mul-T-Lock CSP10R Shackle Protector / Shroud for Mul-T-Lock #10 Removable C Series Padlock HIGH SECURITY. The shroud is made of hardened steel and provides solid protection to C-10 Padlocks from saws and bolt cutters. The shroud reduces the clearance of the shackle, however, its effectiveness is reduced if used with any shackle other than the P1 (shortest clearance).