Blocks help children build many things, like eye-hand coordination and fine motor skills. They also help build patience, social skills and an understanding of spatial relationships. Kids will love POP-ONZthe building system with pieces that clip so easily on the pegs, even the youngest builders will be successful from the start. And since all pieces in the POP-ONZ Building System work together, you can add other POP-ONZ sets for even more creative fun! In time, kids start to think outside the blocks by creating cities, houses or whatever they dream up. So theyre also building their imaginations!