2-Pack of Lipo Safe Pocket 3 Charging/Storage Bags - Ideal for use with 3S Lipos Made from durable fire-resistant materials to help protect you and your belongings in the event of a Lipo battery fire Made to accommodate standard 3S Lipos up to about 2200mAh Secure heavy-duty velcro closure and vents to reduce pressure Also work great for multiple smaller lipos