This number sliding puzzle, with Braille on the tiles, that also attaches to your keychain! This 8-puzzle has eight tiles in a 3X3 grid - with one empty space. Predictably, the tiles are numbered, in raised Braille only, from 1 through 8. Slide the tiles around until they are arranged in sequential order. It sounds easier than it is, but it's not overly difficult either! There's a hole in the top-left corner of the puzzle, through which the wire keychain is attached. Clip the puzzle to your keychain or backpack for fun on the go. Or, remove the keyring and slip the puzzle into your shirt pocket. It measures three inches square and is thus our smallest sliding puzzle! All of the squares are securely attached inside the puzzle, meaning this is a self-contained brain-teaser with moving parts (none of which will fall out or go missing). This puzzle is made from durable plastic and the attached keyring is stainless steel. The tiles are white with red Braille dots. Proudly made in the USA. Warning: choking hazard, small parts; not for children under 3 years old.