Convenient, protective, and versatile, this 3-Pack of Marinco Adhesive-Lined Heat Shrink Tubing contains 3 sections of 3/16 diameter that shrinks to 1/16 wire when heat is applied. Wire range frome 20-12 AWG. Made in USA. Per 3. Color: Black. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Wiring & Electrical.