Platinum Catalyst Flameless Metal Hand Warmer This Hand Warmer is a metal hand warmer with a high-polish finish and a sleek design so it easily fits into your pocket. The hand warmer is virtually odorless (great for hunters) and stays warm for up to 24 hours. Reusable with Ronsonol or Zippo lighter fluid and includes a case. Whether you're skiing, tailgating at the game, hunting, sledding, or enjoying any other cold-weather activity, keep a Peacock Hand Warmer in your pocket and keep your fingers toasty warm. Made of polished chrome plated copper, which does not rust like steel. Easy to light, just use a regular cigarette lighter to burn the heating element for 5 seconds after filling the lighter fluid.