Made of polyethylene, disposable. ● Because the parts of the teeth are flat, it applies even force to the teeth, and there is almost no damage to the teeth. EOG sterilized. Size: 0.6 x 0.6 x 2.2 inches (15 x 15 x 56.6 mm); Material: Polyethylene, medical care, hospital, facility. Doctor Nurse Product published in Matsukichi Medical General Catalog.