1'' Foam Yoga Brick. Our foam bricks are made from a sturdy, scratch resistant foam. You will find these bricks to be very strong and durable, and yet incredibly lightweight and comfortable. Foam bricks lend support and extension to yoga postures. These bricks are commonly used as shoulder supports for headstands. Available in blue and purple. And Buy 1 Get 1 Free – 1'' Foam Yoga Brick. 2 For $4.99 at YogaAccessories.com