FIREPROOF Material: Constructed of supreme fire retardant fiberglass nylon. 100% FIRE PROOF GUARANTEED! Made to withstand fire and heat levels up to 1000℉(550℃). Do not risk your family or property by buying cheap imitations.nOne-of-a-kind: With six batteries compartments, batteries are each stored in their own separate compartment to ensure that combustion of one battery does not affect the others. It can store up to six batteries from 1000 mAh up to 6000 mAh in capacity safely.nOptimal Dual-use: Optimized for dual use allowing it to be hung up flat using the sturdy handle to save storing space or folded up with strong hook and loop enclosure for travel use.nAlways remember to comply with li-poly battery charging and safety guidelines and NEVER leave charging or damaged lipo batteries unattended.nSpacious Large Size: 21.2 x 12 inches (54 x 30.5cm); Each battery compartment measures: 7.4 x 3.8 inches (9.5 x 19cm)n