The JAG Flip Fuel Gas Refill Adapter lets you consolidate backpacking fuel by transferring isobutane between canisters. It is an ultra-lightweight, durable tool for topping off before a trip, condensing larger gas cans into smaller ones, and avoiding waste left in the bottom of discarded bottles. The precision-engineered aluminium alloy body with brass fittings keeps the net weight to just 1.4 ounces (39.7 grams), making it a practical addition for backpackers. - Net weight: 1.4 ounces (39.7 grams) - Material: precision-engineered aluminium alloy with brass fittings