27 Flexible, single, snap together floor panels of resilient composition consisting mainly of plastics and plasticizers, and synthetic materials, also containing rubber; floor coverings, namely, panels of resilient composition consisting mainly of plastics and plasticizers, and synthetic materials, also containing rubber; floor coverings made of a resilient composition of plastics and plasticizers, and synthetic plastic materials; carpet underlay; non-slip mats for entrances of public vestibules, lobbies, foyers, receptions, doorways, and entryways ; floor mats for entrances of public vestibules, lobbies, foyers, receptions, doorways, and entryways; mats for protecting floor surfaces; impact-absorbing floor covering made of resilient material for use in industrial or commercial applications including factories or other applications requiring a non-fatigue surface, namely, anti-breakage floor mats made primarily of plastic and also containing rubber; floor mats, namely, water resistant floor covers; raised floor covers, namely, panels of resilient composition consisting mainly of plastics and plasticizers, and synthetic materials, also containing rubber; all of the aforementioned goods for use in covering existing flooring