Boveda 72 Percent RH 2-Way Humidity Control， Large， 60 gram， 4-Pack<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> 4 pack of Large 60 gram 72 percent RH Boveda in a resealable bag </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Use 2 Boveda packs for every 50 cigars your humidor can hold </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Cycles in humidity are eliminated </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> No need to activate， no maintenance， no more hassle of using distilled water </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Lasts 3 months in most seasoned humidors， replace when packs get rigid </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/5102kxutU7L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41NJFKMNZ4L.jpg" noproxy>