This sensory activity board created by a 4-year-old and his father is amazing! The silicone material is very safe and the colors are bright to attract children's attention. The various buttons, zippers, and buttons on the activity board can not only improve children's hands-on ability, but also stimulate their curiosity and desire to explore. It is very suitable as an early education tool. Children have a lot of fun playing with it, and parents can also participate in it to enhance parent-child relationships. Highly recommended for families with children!