This thing is FUN. I know I know, you think it will get pitched around? For sure!!! Thats half the fun in my mind.
Thankfully it stays shut if it does.
Personally I find the snack ball helps create some excitement on trips out of the house for the cranky toddler to eat some snack. 
Another bonus is long before the whole BPA awareness and scares, Boon was creating BPA free/pthalate free products. They set the bar in both asthetic innovation as well as for the safety of our children. AND continuining to make safe yet affordable products.
From Boon:
Kids and parents will love this fun, sphere-shaped snack container. The rigid form protects snacks from crushing, making the Snack Ball great for travel. Two halves unscrew for easy cleaning and the lid snaps in place to keep snacks inside.
