This kit features: 2 Sustainable Cork Yoga Blocks (Natural Cork) - 10u0026#39; Natural Cotton Yoga Strap (Thunder)nThe Manduka cork block is made of renewable and sustainable materialnIt is durable and user-friendlynIt is made from 100 percent unbleached cotton materialnFeaturing 2 sustainable cork blocks and a 10' yoga strap, the Manduka Yoga Props Package is an props solution, providing the perfect combination of yoga gear needed to support your new or ongoing yoga practice.