This ONE Sing Blocks set is perfect for your baby's birthday party. It includes a total of 3 blocks.The blocks are made of high-quality, that is safe for your child.The blocks are also lightweight, making them easy to handle and move around. The fun designs make these blocks a great addition to any baby's birthday party. The blocks can be used in a variety of ways to create a fun and festive backdrop for your baby's birthday photos. You can also use the blocks to create a fun game for your guests. The blocks are also a great way to encourage your child to develop their fine motor skills.