Amorin WIBL66003X 23-Square-Feet Glueless XTEC Finish Seville Cork Flooring with Attached Cork Underlayment, Allspice XTEC finish is durable and strong second in hardness only to diamonds Manufactured with natural cork that is a renewable resource Formaldehyde free Patented Corkloc glueless click installation and attached cork underlayment for ease of installation Installs using conventional wood working tools