Cork Yoga Block, Small Touch The Toes Large Cork Yoga Block, Natural Cork Wood, Eco friendly, Meditation These Cork Blocks Are the Yoga Props Worth Investing In Reviews by Cork Yoga Block Eco Friendly by Yin Yoga Mats The Cork Yoga Block Waves Yogamatata. Our solid cork yoga blocks provide unparalleled stability and support, allowing you to flow into poses with more confidence. Rounded edges for comfort in gripping and when used as back support. Body kind with no chemicals, latex or PVCs. Naturally antimicrobial and built to last a lifetime using the highest grade of cork on the market.