Come and see our amazing products. The price based on large size-23*30cm,If you need small size-18*23cm,please let me know.This High-Quality lithium polymer battery guard safety bag is very sturdy and durable.Made by fiberglass which is the most efficient insulative and heat-resistant material, covers front and back side to reduce the impact of battery burning or fire.Large size which can fit at least 4pcs Phantom 4 batteries, as well as other different sizes of batteries. And it also large enough for documents storage.The long-side flap on top fully covers and protects the battery with strong strips, will protect your essential documents or cash from burning out or lock the fires down within the bag to keep them safe.The best way to protect your workshop, family, home from the hazard of LiPo battery charging. Pls confirm with us about the packing info, stock color and exact production time before placing your order