A collection of rubber tiles and treads made with rapidly renewable and pre-consumer waste-stream materials, Eco-Naturals Eco-Shell with Cork is manufactured by Johnsonite, the commercial sector of the Tarkett company. The flooring is made with 4.5% walnut shell and 2.5% cork. It doesn’t contain phthalates, halogens, or chlorine. Available in 24"-square tiles, it features a hammered texture and comes in 14 colors. Stair treads are also available. Eco-Naturals is part of the Johnsonite integrated flooring system, which includes rubber, linoleum, homogenous and heterogenous vinyl stairwell solutions, finishing borders, and transitions. tarkett.com