HIGH QUALITY - This model is made of washable high-quality PVC and sits on a base. Each Bid for One Piece! MULTIPURPOSE- This piece is just what you were looking for to fill up that bookshelf. This anatomical replica is perfect for anyone in education or medical field. Manufacturered by BornTo Edu. 100% MONEY-BACK GUARANTEE- We offer 100% guarantee that you are fully satisfied with your product or receive your money back. DETAILED STRUCTURE- The model shows the internal structure of the ear and the location relationship of the external ear middle ear inner ear and balance organ.