Norsk 240151 Reversible Recyclamat Multi-Purpose Foam Flooring, Multi-Color/Gray, 4-Pack Patented reversible feature Easy to assemble Protects surfaces from damage Easy to clean Shock absorbent Pre-schools Day Care Centers Churches Basements Exercise Rooms<br> and Home Gyms Kid&#039;s Play Areas Laundry Rooms Garages and Workshops Camping/Recreation Construction Traffic Anti-fatigue Areas Trade Shows Made from Recycled Materials Reversible - patented design allows use of both sides for aesthetic checkerboard design or for replacing damaged tile surfaces Child Safe Non Toxic - Lead Free/Latex Free Closed Cell High Density foam helps resist moisture Flexible and Extremely Durable Shock Absorbent Acoustic and Thermal Insulation properties Protects surfaces from damage Easy to Clean - use mild soap and water. Test your vacuum prior to using and adjust to its highest setting and Do Not use the power brush feature. Portable - easy to assemble and disassemble to transport. Floating floor - no adhesives needed or recommended Anti-slip textured surface Child Safe<br> (ASTM F 963-07) Moisture Resistant Odorless Anti-slip Anti-Fatigue