Price reduced! ¥4000 → ¥2500 → Further reduced! I purchased this a few years ago for TBI (Traumatic Brain Injury) instruction for patients in oral care. I don't think it's sold anymore. I used it for flossing instruction, so there is no noticeable dirt or deformation. The sponge in the case is indented as shown in photo 3 due to being taken in and out several times. However, overall, it's in good condition. How about using it for flossing and brushing instruction at chairside? 【Product Overview】 Goodbye X Perio is a product specialized in oral care. It is specifically designed to maintain the health of your teeth. 【Included Items】 This product includes a dental model, allowing you to visually learn how to perform actual oral care. 【Storage Case】 The green storage case is convenient for carrying and storage, and the dental model fits securely inside. - Product Name: Goodbye X Perio - Purpose: Oral Care - Included Items: Dental Model - Storage Case: Green Case - Features: Contains a dental model Thank you for viewing.