12' x 15' Natural Step 1/4" Thick Non-Slip Rug Pad - Safe for all floors NON SLIP RUG PAD with a PATENTED "DIAMOND" Texture for maximum grip. MAXIMUM NO SLIP: Unique PATENTED "BOX" Texture within the felt makes it MOST EFFECTIVE NON SLIP rug pad available. CRI GREEN LABEL: Approved by the Carpet and Rug Institute for clean air. PROTECTS RUG AND FLOOR: Resists pressure and stress that can cause wear and damage,100% AMERICAN: Made in USA of natural felt and rubber - SAFE FOR ALL FLOORS. THICK NON SLIP: Thicker than any other non slip pad - Full 1/4" thickness.