Manduka’s Recycled Foam Yoga Block is the first among equals – consisting of over 50% recycled EVA foam, this lightweight yoga block provides unbeatable comfort, style and support.. Features -. • 0.4 kg; 23 cm x 15 cm x 10 cm. • Contains between 50% - 75% recycled post-industrial & post-consumer EVA foam.. • Radius edges for comfort and beauty.. • High density, extreme durability, firm support.. • Soft, comfortable grip that is also slip-resistant.. Info & Care -. To Clean: Wipe clean with a damp cloth or dampen the cloth with an organic household cleaner such as a 50/50 organic apple cider vinegar & water solution. Keep out of direct sunlight.