This 36 piece wonder blocks II set is made of flexible, durable plastic, lightweight and easy to stack. Features:
Comes in assorted shapes (domes and roof shapes) so that children can add finishing touches to their building projects, like castles, towers & fortresses. These blocks come in purple, pink, yellow, and green. Specs:

Includes 3 dome tops (2-3/4"x4.5"),

6 pink roofs (4.5"x4.5"X3"),

3 towers (4.5"x3.5"),

3 purple half bricks (4.5"x4.5"x3.5"),

4 purple flat roofs (4.5"x4.5"),

19 yellow bricks (9"x4.5"x3.5") Recommended for children ages 3 and up