1. The business is mainly focused on the United States, with a core business of selling daily and monthly contact lenses, glasses, and other vision care products online through a subscription model. 2. In the health/medical e-commerce sector, it is an emerging subscription-model brand, with competitors including Acuvue, Biotrue, and Bausch + Lomb. 3. The brand terms used on the official website are "Hubble" or "Hubble Contacts".