Portable Butterfly Fuel Hand Warmer Reusable Platinum Standard Pocket Handy Hand Warmers + Free Replacement Head for Hunting Package included: 1x Platinum Hand Warmer 1x Bagwill send you random color and style) 1x Oil Cup 1x Replacement Head It's replaceable when it burns over. If your hand warmer is burnt over,You can replace it by this replacement head. High heat output makes it usable even in extremely cold places with -40c temperatures. Long-life design provides many years of service. Very economical because of low fuel consumption. Burns clean owing to platinum catalysis. Ship via e-packet with a tracking number,very fast!