Hot to Go Reusable Heat Packs - Buy 4 Get 4 Free!<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Buy 4 Get 4 Free - Incredible Value! </span></li><li><span class="a-list-item"> Heats up within seconds - reaches temperatures of up to 129F (53C) </span></li><li><span class="a-list-item"> Can be reused over and over again - recharge by boiling in water. Eco-friendly unlike disposable hand warmers </span></li><li><span class="a-list-item"> Great for outdoor activities， sore muscles， menstrual cramps， massage and more </span></li><li><span class="a-list-item"> 90-day guarantee - buy with peace of mind </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41JTrpozStL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41d-3YhSFpL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41NI66K0PpL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41YZslaSFoL.jpg" noproxy>