3:1 Heat Shrink Tubing Adhesive Lined. Select 1 of 11 Sizes and 5 Lengths by ISOLATECH, here: Ø3/4inch-20ft (Ø19mm-6meter): Amazon.com: Industrial & Scientific
New Lon0167 30mm Diameter 6M Length PVC Heat Shrink Tube Tubing Clear for 1 x 18650 Battery(30mm Durchmesser 6M Länge PVC-Schrumpfschlauch-Schlauch klar für 1 Batterie x 18650 - - Amazon.com
New Lon0167 30mm Diameter 6M Length PVC Heat Shrink Tube Tubing Clear for 1 x 18650 Battery(30mm Durchmesser 6M Länge PVC-Schrumpfschlauch-Schlauch klar für 1 Batterie x 18650 - - Amazon.com
Amazon.com: GFORTUN 3: 1 Shrinking Ratio Black Heat Shrink Tubing Dual Wall Adhesive Lined Heat Shrink Tubing Roll Tube Electrical Cable Wire Sleeving Wrap Dia 15mm (5/8'') : Industrial & Scientific