Yoga Design Lab Mandala Cork Block is designed to provide superior grip and strength so you can confidently move deeply into those challenging poses. Mandala Block is made with biodegradable 100% natural cork, harvested sustainably in Portugal. Mandala Block is made of premium quality for the most rigorous studio conditions or at-home practice. Assists your alignment, adjustments, and balance. Use the low, medium, or high positions to accommodate your poses.