Come and see our amazing products. Made of the ABS shell, LED screen, acrylic panel, high-speed computing chips , anti-skip silicone inside, medical-grade silicone finger mold and various electronic components of oxygen finger monitor, all adopt high-quality materials and components. Even the spring of the oximeter finger has been subjected to thousands of tests. About Medical supplies We will never use any cheap material to make oxygen monitor. Pls confirm further with us if any query about packing info, inventory status and time schedule.