Bluestone Room Humidifiers - Set of 2<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"> No noise and no electricity， batteries or expensive filter required </span></li><li><span class="a-list-item"> Fill black ceramic bowls with water </span></li><li><span class="a-list-item"> Natural clay stones absorb and release moisture into the air via evaporation </span></li><li><span class="a-list-item"> Small humidifier (3.5 inch circumference， 3.25 inches tall) </span></li><li><span class="a-list-item"> Large humidifier (4.5 inch circumference， 4 inches tall) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31rkdlxCr2L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41jhmrZwrRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41X-dw5kEYL.jpg" noproxy>