Highland Barley Insulation Paper Ring for 18650 / 20650 / 21700 / 32650 Batteries
Premium barley paper construction ensures superior heat resistance and electrical insulation for enhanced battery safety. Precision-cut design guarantees a perfect fit for 18650, 20650, 21700, and 32650 battery cells, preventing short circuits. Eco-friendly and flame-retardant material withstands high temperatures, ideal for DIY battery packs, vaping mods, and power tools. Ultra-thin yet durable for seamless integration without compromising battery performance or space efficiency. Essential for hobbyists and professionals seeking reliable, high-quality insulation in energy storage projects.