Using our (Patent Pending) Specially Designed Heat-Shrink Tubing for Creating Finished Composite Shafts
Shrink tubing stretches very little, so (for ex.) a 1.8" diameter shaft should actually use the next size (a .4" or a 3.1" composite shrink tube). A 1.25" diameter shaft should use a 1.6" diameter shrink tube.
The tubing shrinks very little lengthwise. Allow 1inch for every 10ft.