IQ Baby Knock Knock Blocks

Build, explore, and discover! IQ Baby Knock-Knock Blocks are 3" fabric-covered foam blocks. They are easy to stack and are filled with lots of windows and doors that are fun to explore. The blocks contain sounds of crinkles and squeaks that are fascinating to discover. The set contains 4 black and white triangles and 8 colorful cubes. Ages Birth and up. By Small World Toys