This 90 piece wonder blocks II set come in purple, pink, yellow, and green, made of flexible, durable plastic,lightweight and easy to stack.  These play blocks are perfect for building stable structures. They even come with domes tops to add finishing touches to castles and towers! Our plastic blocks are a great addition to a classroom, daycare, kindergarten, playroom, or child's room.  This wonder blocks set includes 6 dome tops (2-3/4" X 4.5"), 3 purple flat roofs (9"x4.5"), 12 pink roofs (4.5"x4.5"x3"), 6 towers (4.5"x3.5"), 6 purple half bricks (4.5"x4.5"x3.5"), 6 purple flat roofs (4.5"x4.5"), 50 yellow bricks (9"x4.5"x3.5"), 1 purple flat roof (9"x9")  Recommended for ages 3 and up