3CERA&reg; Survival Waterproof Peanut Cigar Refillable Oil Lighter Torch KeyChain x2pcs + Large Ferrocerium Rod Flint Fire Starter x2pcs Lighter is 2x0.6 inches weighs approx. 0.88 ounces (25 grams) when empty These use liquid naphtha fuel, and use standard flints, available at most grocery and hardware stores. You simply pull out the insert and pour fuel into the cotton inside Note: ships empty due to postal regulations Fueling and replacing flints is done in the same manner as a Zippo