ELECFUN 3in Heat Shrink Tubing 3:1 Large Marine Heat Shrink Tube Dual Wall Adhesive Shrinkable Wire Wrap Tube, Fully Insulation (4 Feet Black Tubing)

3 inch diameter heat shrink takes a lot of heat to shrink down, but it shrinks down nicely. It should be very waterproof with the epoxiy lining.

As advertised. Perfect for my need.

I ordered this 3 inch heat shrink. What I got was 5 inch. I was able to use it anyway as it did shrink enough for what I wanted but it took a lot more time and heat and was starting to melt what I was trying to cover by the time it was done. UPDATE: The vendor reached out and refunded the purchase of this heat shrink and offered a smaller size free of charge therefore I am upping my review. The explanation for the size discrepancy didn't make sense to me, and didn't match what I experienced, but the fact that they were willing to take significant steps to make it right matters.

Reasonable price

I know there are lots of complaints about not being the right length, the glue not worthy and quality. I'm here to tell you, I had none of these issues. The length was exactly four feet, and I cut eight inch sleves to go on pool noodles to make six sets of "Danny Go Pool Noodle Drum Sticks". The noodles are just under three inches diameter. The shrimk tube snuggled up nicely and while warm was very pliable to wrap around the edge and back into the hole in the center of the pool noodle. After completing all six sets and they cooled, I tried to slide a few off, and they all remained. The material shrunk very nicely and was so pliable that I am able to see the pool noodle texture through the material and when cooled and hard again, it looks really nice. Very happy with this shrink tube and I know where I'll buy more for other projects.