Tired of folding over your mat for knee-to-floor poses, or worse, grinning and bearing the discomfort? Experience true "knee-vana" with RatPadTM, the original yoga pad, only by YogaRat! Small, featherweight, and made from nontoxic, moisture-proof foam material that's both recyclable and photodegradable, the RatPadTM is the perfect companion to your mat--for when your knees, elbows, or head could use a little extra comfort. 11.75" x 7.5" x 1" and just 2.2 ounces.