The check logo of the breast cancer awareness project of CHUKYO TV has been widely accepted as a instruction of how to self-check.

Mothers are naturally encouraged to make a habit of self-checks by the BALL BOOK's design, which is easily accepted as a children‘s toy by Japanese women who tend to dislike direct breast expression and by the planning, which a child pretends to be a “Little Doctor” and teaches her/his mother how to self-check in a fun way in.

Because of this art direction, the BALL BOOK provided a pleasant experience of breast cancer self-check to many parents and children at healthcare events, public libraries and public baths. This has turned a barely spoken matter of breast cancer into an accessible and familiar subject for everyone (from kids to adults).

For children who self-check with their mothers, it can be an educational experience for when they grow up.