Aston Reduction Nasal Rasp is specially designed to accurately reduce the cartilaginous dorsum and lower the upper lateral cartilage. Push/pull allows for greater control. overall length 8″ (20 cm). It features a tough, durable, premium-grade carbide alloy that is non-magnetic and non-carcinogenic. https://new-medinstruments.com/rasps-files-and-saws