Unique Bargains Heat Shrink Tubing 1.18' Dia 2.0' Flat Width 3:1 rate Shrinkable Tube Cable Sleeve 1M Black

CHOOSE THE RIGHT SIZE TUBE. Measure the diameter of wire/cable you want to wrap, make sure the diameter is equal to the size of heat shrink tube after shrinking, because the tube will shrink up to 1/2 of original diameter after heating.
WRAP THE WIRE WITH THE TUBE. Cut out the length you need, wrap the wire with the tube, use a lighter, hair dryer or heat gun to heat the tube.
HEAT THE TUBE UNTIL THE WIRE IS WRAPPED TIGHTLY.