Size: Large Large Small High-pull instant-fit chin cap. Opposes class III growth tendency and provides retention after class III correction. Designed to exert posterior and superior force on the mandible through the chin. Kit contains: Head Cap. Adjustable strips to fit patients head securely & comfortably. Chin cap. Soft chin cap, sturdy yet delicate. Traction band. Adjustable traction bands to change force level as needed.