Reusable Hand Warmers / Pocket Heaters - 4 (Four) Random Colors - Holiday Gift Wrapped Just click the floating disc inside the pack for heat in seconds, the reaction of the clicking with the non-toxic solution causes it to crystalize and heat to 120-130 degrees in seconds! Reusable - Just put in boiling water to turn back to liquid, with Lifetime Guarantee! 4 Handwarmers, Random Colors (colors will vary) individually boxed and all 4 in 1 high quality GIFT BAG, Gift Wrapped Perfect for dog walking, poor circulation to warm up, therapeutic relief on aching muscles, etc. Lightweight and compact, only 3&quot; x 3.25&quot; x 0.4&quot;, perfect size