The 12 Ultra Soft Blocks are great for toddlers and young students. The colorful design will catch their eyes instantly!Open up your toddlers imagination with this set of Ultra Soft Blocks. This set of 12 blocks is the perfect way to promote motor skills through stacking and building. These blocks feature an ultra soft vinyl cover, with dense polyurethane foam cores. These blocks are durable, and easy to clean. These soft blocks are fun, and safe for your toddler.