2PCS Lipo Safe Bag for Lipo Battery Storage and Charging Fireproof Explosionproof  Package contents: 2PCS 185x75x60mm battery safety bag Specifications: Apply to: Used for battery charging and storage It can also be used to store important documents and collectibles Size (LxWxH): 185x75x60mm Weight: g Material: glass fiber material with fireproof coating 1) The safety bag is made of flame retardant material and high strength material. 2) Charge the battery in a safety bag. In case of fire, it can help control the flame and reduce the loss of lithium battery charging fire accident. 3) Someone needs to watch over the battery when it is charged. 4) When the battery is charged, make sure that the battery is completely put into the safety bag.