Features: High-quality fire-retardant material made, high temperature resistance, radiation for protection, explosion-proof. Heat-resistant and explosion proof, safe to storage, transit or charging Lipo battery. Adopts sealing magic tape, makes it easy to open and close. Designed to reduce the danger of any fire or explosion caused by incorrect charging, protect you or your family and home away from the dangers. Portable and foldable, easy and convenient to carry, store the battery and fly easily. Specifications: Material: Flame Retardant Materials Applicable Model: for Mini 3 Pro Color: Black Type: S, for M, L(optional) Small: Approx. 9x7.2x3.8 for cm/3.4x2.831.5 inch Medium: Approx. 9.5x8.6x6.3 for cm/3.74x3.39x2.48 inch Large: Approx. 9.5x12x6.3 for cm/3.74x4.72x2.48 inch Package Includes: 1 Piece Li-Po Safe Bag note: Does not include the battery. Small for 1 pcs battery,Medium for 2 pcs batteires,Large for 3pcs batteries. Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you mind. Due to the difference between different monitors, the picture may not reflect the actual color of the item.