Keep your hands toasty warm with PIP Heat Packs! These air-activated hand warmers are the ideal size for our headwear and gloves, providing over 12 hours of comforting warmth. They reach full temperature in just 2-5 minutes and can be resealed for later use. Non-toxic and convenient, each insert measures 2" x 3.5" (5.1cm x 8.9cm). Available in display cases of 40 pairs (5.6 lbs., 2.5 kg) or bulk cases of 240 pairs (35 lbs., 15.9 kg). Perfect for staying warm on cold days!