Προστατευτικό κατασκευής pack μπαταριών 18650

Outer Ring Diameter: 17mm/0.67″(appr.)
Inner Ring Diameter: 10mm/0.39″(appr.)
Thickness: 0.24mm/0.01

Adhesive cardboard paper for 18650 battery insulator.
Better protection to avoid short circuit on batteries.
Easy peel and stick application.