Manduka's recycled foam block is the first among equals - consisting of over 50% recycled EVA foam, this lightweight yoga block provides unbeatable comfort, style and support.Offered in bright, bold colours that will last: thunder, midnight, and poppy! Slip resistant with radius edges- edges that are rounded off for even more comfort during use.Manduka's recycled foam block isn't squishy, gives outstanding support with its high density foam, and is extremely durable.- 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