The 66fit Ear Acupuncture Model -22cm is made of PVC plastic, and shows the location of acupuncture points on the auricle reflecting the corresponding viscera and parts of human body. Pamphlet describing the points are included.  Every model has meridian identifiers printed on the model, and a booklet is supplied in English that relates to each point. Specifications: Material: Washable PVC Size: 12cm x 7.5cm x 22cm Product Weight: 350gms Instructions: Included Packaging: White Box