Cork Yoga Block by Kindfolk Set of 2About this product by Kindfolk Made of sustainable cork, this high quality yoga block gives you the support you need to feel secure in your practice while also providing generous cushioning. Sustainability facts Cork is a renewable, sustainable material, which comes from the bark of a Cork Oak Tree. There are no toxic chemicals used in the manufacturing of our cork yoga blocks. $1 will be donated to one of our 3 nonprofit partners to help empower