This is a set of 3/16 diameter heat shrink tubing from Dubro.

Features:

• Designed to shrink up to 1/2 of its original size
• Ideal for insulating electrical splices, covering electrical plugs and connectors

Includes:

4 - Pieces of red and black heat shrink tubing

Requires:

Shrink tubing on all sides with heat gun, butane lighter or soldering iron

Specs:

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.