Approx. 144 pieces or 864 liner ft. of 1-5/8"id x 3/4" wall thickness x 6'L tubing insulation, used for refrigerant lines or water lines for hot water boing to heat house. I bought it to insulate the water lines from a wood fired water heater to my house but never install the system. This stuff is goo for -70*f to 300*f temperatures. New it sell for $21.48 per 6' piece.