| Brand | Nienhuis Montessori |
| Material | Paper |
| Minimum age | 3 years, 5 years |
| Inside or outside | Indoor |
| Color | White |
A complete set of 45 spiral bound booklets, 9 pages each. Each booklet presents a basic phonogram sound with 8 different words (1 word per page) showing spelling variations.
The isolated sound on each page is printed in red.