Gaiam 3" ECO CORK YOGA BRICK Gaiam's Cork Yoga Bricks are a great option for those who do not feel flexible enough to complete some yoga poses. These bricks can also be used to extend the stretch of some poses for advanced yogis. Great texture, comfortable and pliable, these bricks provide optimal grip and traction. They are made from all-natural materials. Rounded edges for extra comfort. Available as singles only.