ThreeBulls 200Pcs 18650 Lithium Battery Insulator Rings Hollow Paper Pad Electrical Insulation Ring Adhesive Cardboard Sticker (Red 100Pcs + Green 100Pcs);

Features:

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

Package included:

200 x Battery Insulators Adhesive Paper (Red 100Pcs + green 100 Pcs)