These 9-color therapy glasses are perfect for anyone looking to relax and explore the benefits of color therapy. Whether you're at home, in the office, or just need a moment of peace, these glasses can help. The set comes with a PDF e-book that offers insights into healing during the age of enlightenment. There's no specific technical size or weight to worry about, making them easy to carry around. They make a great gift for friends, family, or even yourself!