Yes4All HQ Yoga Block - 9 x 6 x 4 inch - Black - &sup2;BAATZ High Density, Extremely Durable, and Studio Quality Yoga Block with no chemical smell Dimension: 9 x 6 x 4 inch Non-slip, scratch-proof surface with Beveled Edges for Added Comfort Shipping weight is 13 oz Available in several colors: Black, Blue, Purple