-Gym Tested & Studio Durable- Ready to support the demands of elite athletes and beginners alike. Reliable products that can see you through countless uses. Ideal dimensions provide a compact design & luxurious feel without sacrificing stability -Anti Slip- The natural texture provided by the cork ensures grip no matter the training circumstance; from a simple stretch to the most intense hot yoga session the cork will provide unparalleled traction. 100% Natural Product- Solid cork construction provides a non-toxic, naturally soft, breathable, biodegradable, and HAP free block without sacrificing quality.ABSOLUTELY NO INK or printed logos! -Sizing- This ideally sized yoga block is 9"x 6”x 3”