You will receive four 1-foot pieces of BLACK 4mm (3/16") I.D. (inner diameter) 4to1 dual-wall heat shrink tubingper quantity ordered

If you need an uncut continuous length of tubing, it is usually available upon special request - add a note or message to request!

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  • Premium dual-wall polyolefin heat shrinkable tubing - no printing on the tubing
  • 4 to 1 shrinkage ratio; will shrink to one quarter of the nominal internal diameter
  • Inner wall melts when heated, forming corrosion-resistant seal over wires
  • All stated diameters are internal diameter pre-shrunk measurements

UNDERSTANDING THE SIZING CHART:

  • Nominal Internal Diameter - this is the named starting size in millimeters, referred to in the title of each post
  • Actual Internal Diameter - the tubing is actually slightly larger than the nominal size to ensure a proper fit!
  • Wall Thickness Fully Shrunk - this is the thickness of the walls of the tubing when fully shrunk
  • Internal Diameter Fully Shrunk - the internal diameter after the tubing is fully shrunk