<b>Is it anti-slip?</b><br> Yes, it is anti-slip. These well-designed spa slippers are made of <br>comfortable and breathable waffle. You can wear them for <br>a long time without making your feet wet. And they are <br>made of non-slip soles, no matter if you are on dry or wet <br>ground, they will not make you slip off. <b>How to wash?</b><br><br> Please clean with mild detergent. Avoid using hard brushes to <br>avert damage to the surface and softness of the slippers. <br>Do not use bleach. Air Dry.<br><br> <b>What’s the size?</b><br><br> 6 Pairs of gray Spa Slippers( Gray--11.3 x 4.3 x 0.24 inch)<br><br> <b>Washable and Reusable</b><br><br> Our slippers can be washed 2 to 3 times and can be reused <br>many times because the reliable quality . You can use them <br>as household slippers, spa slippers, travel slippers or guest slippers.