This is a set of 3/16 diameter heat shrink tubing from Dubro.
Includes: Four pieces of red and black heat shrink tubing
Requires: Shrink tubing on all sides with heat gun, butane lighter or soldering iron
Diameter: 3/16 (4.5mm)
Length: 1-1/2 (38mm)
Note: Use a tubing size that is no more than twice the diameter of the object being covered.