This handy hand warmer will keep your hands toasty whilst on the go as its flameless catalytic warmer with protective fleece bag provides up to 12 hours of portable heat on the go take it with you on outdoor activitiespursuits and know that you have a reliable safe heat source which is easy to use and carryr flameless catalytic warmer 6 12 hours burn time protective fleece bag included requires lighter fluid not included filling cup including approx 90 burner uses assuming 12 hou