Gently used. The Manduka Recycled Foam Yoga Block is a lightweight, non-slip yoga block made from 50-75% recycled EVA foam. It measures 4 in x 6 in x 9 in and weighs 1 lb. The block has a high-density foam design for firm support and a slip-resistant grip. It also has radius edges for comfort and style. - Strong eco-credentials - Durable and grip-friendly - Comfortable and supportive Questions? Leave a comment below!