... , environmental protection (E1), abrasion resistance(AC5), easy-to-install (click system), sound reduction, etc. 1.100% waterproof & environmental protected. It ... use.3. Sound reduction (-30DB,designed by hollowed structure).4. Easy-to-clean (washed by water).5. Easy-to-install (click system over 4 ... garden, garage, gym, office, hospital, supermarket etc... waterproof vinyl flooring with click system