Marpac Tracheostomy Tube Collar, 100/BXPRODUCT FEATURES: One piece, pediatric 8 to 12 Inch neck To make sure that children wont have to deal with uncomfortable closures, they are made of soft fabric twill or thin Velcro with rounded edges that wont irritate or bite into skin Use Velcro fasteners or twill fastener tabs attach quickly and easily to the foam collar, yet are secure and limit movement of the tracheostomy tube to reduce accidental decannulation Can be customized if you have hard