This is the silicone hose that attaches your turbocharger's oil drainback tube/pipe to the back side of your engine block where the oil from the turbo's bearing housing drains back down into your oil pan after it just got done lubricating your turbocharger's center housing rotating assembly.  (CHRA)
Made from a special high temp silicone material, this hose is often worn, torn, or just plain shot from 35+yrs of service.   We only have these two left.  Price is for 1.