Jade Balsa Superlight Yoga Block Jade Balsa Yoga Blocks are made with 100% balsa wood, a rapidly renewable resource, harvested from the balsa trees outside of rainforest areas. Soft, but not spongy, perfect for supporting poses, aiding alignment and opening your practice. Jade Balsa Superlight Yoga Blocks are extra lightweight for yogis on the go. Jade Balsa Blocks are made from naturally growing and non-engineered balsa wood, Jade Balsa Blocks may vary slightly in weight and appearance. Through its partnership with Trees for the Future, Jade preserves 100 square feet of rainforest for each block sold. Jade Balsa Superlight Small Yoga Blocks are 2.75” x 5.25” x 8.75”. Jade Balsa Superlight Large Yoga Blocks are 4” x 6” x 10” (The large blocks may be made with two pieces of wood glued together) JADE HOLDS As Jade is made with open cell, natural rubber, you can say goodbye to slipping on your practice mat – even if it gets wet with perspiration. Natural rubber has long been used where safety demands non-slip performance. Jade takes advantage of the non-slip properties of natural rubber- resulting in the best slip-resistance on the market. Try it – we’re sure you’ll agree. JADE PERFORMS In addition to providing better slip-resistance, because it is made of natural rubber, Jade has exceptional resilience, unmatched “compression set” resistance and incomparable cushioning. These characteristics guarantee you the ideal mat for those looking for maximum comfort and performance. Jade can be hand washed with mild soap and warm water; hang or lay flat to dry (out of direct sunlight). JADE is GREEN Jade is constructed of natural rubber, a renewable resource tapped from rubber trees – containing no PVC or ozone depleting substances. Perfect for the yogi concerned about the earth and is made in the USA in compliance with all U.S. environmental and labor laws