Material: insulated barley paper. Temperature resistant 130 degrees Celsius.

The product material is stable, better protection, avoid battery short circuit, easy to peel and paste.

Features: grease resistance, aging resistance, insulation, flexibility, water resistance.

It only works with 18650 batteries.

Package includes: 500pcs green shell paper lithium battery insulation gasket suitable for 18650 battery.

Note: Please carefully check the product size on the picture to ensure that it is what you need, thank you!