this marpac tracheostomy tube comfort collar is designed to help prevent tracheotomy-related pressure wounds (a complex problem in some cases) and features a built-incushionmaterialthat helps protecttheneckfromdirectcontactwithtracheostomytube flanges; plus, its cushiondesignallowsfor usewithbothstraightandv-styletracheostomytubes. this pediatric size was designed in cooperation with children's hospital care providers and is intended for neonatal, infant, and younger pediatric patients, and this two-piece collar fits up to a 12-inch neck and has built-in flange cushions on both ends.