Para-fit, Regular size, unused. Supervised by world-renowned saxophonist Yo Matsushita, this product is designed to be placed on the teeth while playing the clarinet or saxophone to prevent mouth pain. Also, the fit is very good, and I feel that the sound quality improves. Organic cotton fit pads for musical instruments. - Product Name: Regular PARA-FIT - Supervisor: Yo Matsushita - Intended Use: For musical instruments - Material: Organic cotton - Features: Excellent fit for musical instruments Thank you for viewing.