Wish I had an abacus like this back in the 50's when I was first learning to add.
This is really a fine motor & proprioceptive activity for a high schooler in a class for students with autism. He needs a little more adult-directed activity built into his day to keep his fingers happy and these fruit-scented gummy bits take a little work to push along the surgical tubing. Yep, they're from my favorite store--Big Lots.