Shock Athletic ECO Cork Yoga Blocks 4 in X 6 X 9 , 3 Inch X 6 X 9 Single Pack

Doing yoga with a cork block makes my think of opening a bottle of wine! much better than plastic foam, very firm and supportive.

Came promptly!Heavier than expected. I'll keep it at home, but too heavy to carry around to class.

This is treated with Microban (aka: Triclosan) http://en.wikipedia.org/wiki/TriclosanForm your own opinion, but be aware.