Purple Bytrox S (Slim), ideal as an oral aid - Brand: Dentacare - Product Name: Oral Aid Bytrox S (Slim) - Color: Purple - Purpose: Oral assistance - Quantity: 1 Purchased on Amazon for 2478 yen. Used only once, for a single day, for someone who couldn't open their mouth on their own. There are some bite marks. Washed with dish soap and wiped with an alcohol wipe. If you don't mind, please consider purchasing.