WanPower 70066 2pcs Fireproof Explosionproof Lipo Battery Safe Bags, Big and Small Size Protection Bags for Battery Charging and Storage, Color Silver Includes 2x silver Lipo safe bags, big and small size each It is fireproof and explosionproof and used for storing any kind of battery, especially for RC Lipo battery. The fireproof bag is made from flame retardant and high intensity non-woven fabrics. It can effectively isolate the battery from contacting with the air when combustion or explosion accidents happen. This may significantly reduce the loss caused by the accidents. Color: Silver, Size: 9.1x11.8in & 7.1x8.7in, velcro closure design. Decor on the picture is for reference only, the actual decor may be different. Warning: Never leave charging battery unattended. Always ensure the battery is with a non-flammable surface. Ensure flap is sealed while charging .The Lipo safe bag is intended to reduce the chances of damaged in the event of a lipo fire.