These glasses allow you to watch your smartphone, TV, or read books while lying down. ※ No box included. They may also be good for preventing "smartphone neck." You can read books and manga or watch TV while lying on your back on the sofa or in bed without straining your neck or arms. This is a new, innovative product that uses prism reflection to allow you to see 90° downwards. Individual results may vary after wearing. If you feel unwell after wearing them, please stop using them.