ThreeBulls:Adhesive cardboard paper for 18650 battery insulator.
ThreeBulls:Better protection to avoid short circuit on batteries.Easy peel and stick application.
ThreeBulls:Outer Ring Diameter: 17mm/0.67"。Inner Ring Diameter: 10mm/0.39" 。Thickness: 0.25mm/0.01"
ThreeBulls:Package included: 200Pcs Battery Insulators Adhesive Paper(Red 100Pcs + green 100 Pcs) (Battery not included)
ThreeBulls customized product