Function: It works by creating a partial vacuum over the sunken area of the chest, gently lifting the breastbone and front ribcage. Components: The device typically consists of a soft silicone cup, a hand pump, and tubing to create the vacuum seal. Usage: It is designed for conservative treatment, often requiring daily use for several hours to achieve and maintain chest correction. Manufacturer: Based on the tag, this specific unit appears to be from Pectus Healing