With their self-levelling ability, these Super Feltac(TM) felt pads are a great choice for furniture that has slightly angled legs. They are ideal for use on hardwood, laminate, vinyl and ceramic surfaces. Made of polyester and foam, the pads also take the stress out of moving furniture. The self-adhesive design makes them easy to secure and install for immediate use. The round-shaped pads are 1 1/2" (38 mm) in diameter and the package contains 4 floor protectors.