18650 Battery Insulators Adhesive Insulating Cardboard

Outer Ring Diameter: 17mm/0.67"(appr.)

Inner Ring Diameter: 10mm/0.39"(appr.)
Thickness: 0.24mm/0.01"(appr.)
Adhesive cardboard paper for 18650 battery insulator.
Better protection to avoid short circuit on batteries.
Easy peel and stick application.