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. 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.