BOVEDA 69 Percent RH (320 GRAM) - 2-Way Humidity Control Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Use with or without our 320 gram mounting plate</li><li>Dimensions: 6.75"w x 5"h x 0.82"d</li><li>Equivalent to over 5 large Boveda packs</li><li>Shelf Life Before Opening: 2 years</li><li>Replace when inner pack begins to get rigid</li></ul></div><img src="http://ecx.images-amazon.com/images/I/5195eNnB5EL.jpg" noproxy>