Upgraded Lipo Bag Material: Inner surface is made of fireproof fiberglass and outer surface is made of silicone coated fireproof fiberglass; 100% Fireproof Stands up against fire and heat up to 2000 degrees Fahrenheit Ebike Battery Bag: Unfold product size 20 x 5.5 x 9 inches, Colcase lipo safe bag is very big to store your Ebike Battery or other lipo batteries Combination Lock Design: Combination lock with 3 digit of Colcase lipo bag provides you 100% security seal and helps you to keep lipo batteries out of reach of children Reflective Strip Design: The reflective strip of Colcase battery bag make it easy for you to find the lipo bag in the dark night Safeguard Lipo Battery: Colcase Fireproof LiPo Battery bag is a convenient way of safeguarding your Lipo batteries during charging, transit, and storage. The lipo safe bag is intended to reduce the chances of damage in the event of a lipo fire Explosionproof Protection: Designed with multiple layers of protective material to contain and minimize damage from potential battery explosions or thermal events during use or storage Portable Storage Solution: Lightweight and foldable design allows for easy transportation and convenient storage when not in use, making it suitable for home, workshop, or travel applications COLCASE Lipo Safe Bag Fireproof Explosionproof Ebike Battery Storage Bag and Lipo Battery Charging Bag with Combination Lock Silicone Coated Fireproof Bag (20 x 5.5 x 9 in)