4 units. Never used ... $20 or best offer. I have photos of them that are too large to be accepted by the neighborhood listing. I can send to you via e-mail if you are interested or check the link below. Call 412 760 7813. http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?productId=202057595&storeId=10051&langId=-1&catalogId=10053&ci_sku=202057595&ci_kw=%7bkeyword%7d&kwd=%7bkeyword%7d&cm_mmc=shopping-_-googleads-_-pla-_-202057595&ci_gpa=pla#.UGmquZjA-Jo Jerry Schmitt Director of Global Services Chorus Call Inc. Office +1 412 858 1385 USA Cell +1 412 760 7813 Intl. cell +41 79 239 09 39 www.choruscall.com<http://www.choruscall.com/> [Description: Description: Description: Description: CC%20Inc%20logo]