Check the listing for details. 3" ID Black Heat Shrink Tube 2:1 ratio 3.0" wrap (4 feet) inch/ft/feet/to 80mm. Condition: New. Listed at 12.95 USD. You will receive four feet of BLACK 3.0"(80mm) I.D. (inner diameter) tubing, per quantity ordered If you need a longer uncut continuous length of tubing, it is usually available upon special request - add a note or message to request! Add multiple of my items to your cart to unlock higher discounts! We ship every single day, rain or shine, to get your package to you QUICKLY! Premium polyolefin heat shrinkable tubing2 to 1 shrinkage ratio; will shrink to half of the stated inner diameterAll stated diameters are internal diameter pre-shrunk measurementsSmall printing on the tubing states the diameter and temperature range (some colors/sizes may have no printing) UNDERSTANDING THE SIZING CHART: Nominal Internal Diameter - this is the starting size, referred to in the title of each postActual Internal Diameter - the tubing is actually slightly larger than the nominal size to ensure a proper fit!Approximate Flat Width - larger sizes start out folded down flat, this is a flat dimension for your referenceShrunk Internal Diameter - the tubing will shrink down to smaller than this size, guaranteed!