The sit and play format are used to help develop fine motor skills for the child by combining ball pit format and arch activity play. (strollerlab.net)
This helps us with fine motor skills as well as learning to build structures like this and balancing the cups so that they don't fall. (powerfulmothering.com)
We use only 2 things for this busy bag that is great for fine motor skill practice for toddlers and preschoolers. (besttoys4toddlers.com)