Packages that are difficult to open and labeling that is difficult to understand annoy users. As might be expected, universal design oriented products should carry explanations and labeling that are easy for users to understand, and manuals and packaging that every user can handle easily. In particular, safety notices and important information should be identified clearly. Careful consideration of the needs of users with visual impairment, users having difficulties in language comprehension. And users with physical disabilities is also indispensable.