Braille-domino

Bought these for my dad who lost most of his sight last year, and he picked up the dots right away. The raised ridge down the middle makes it easy to tell where one number ends and the next begins, even when he's feeling them quickly. We've already played three rounds.

The raised dots are genuinely easy to read by touch, and the ridge down the middle keeps the two numbers from running together. My only gripe is that the pieces are a bit light and slide around on a smooth table, so I put a felt mat underneath. Works well for quick number games with my students.