"This colorful and safe shape sorter has amused, intrigued and taught my daughter for almost a year. At 8 months, she enjoyed fingering the shapes and peering at the bright colors. By 15 months, she was inserting the most basic shapes and using the entire unit as a big noise maker. Now at 19 months, she aligns and inserts a majority of the shapes correctly, removes all of them from the drum and stacks them into a tower. I highly recommend this durable and versatile toy."