Features: This caries model is made of high quality plastic for durability so it is not tend to be fragile. Small size design is easy to carry, and it can be stably placed on table with the flat base. Transparent gingival part allows you to see clearly of tooth root and nerves. It helps people better understand the structure or function of teeth. This is a great model for dentist to communicate with patients and also a visual tool for school children of all ages in oral hygiene lessons. Specification: Material: Plastic Weight: 232g Size: 9*7*7cm/3.54*2.76*2.76in Package Includes: 1 x Tooth Model Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.