Features: Preparation model with screws fixed with 32 teeth and detachable gums made of resin. Mainly used for dental preparation exercises and demonstration teaching. Made of resin material, the hardness is close to the real in vitro teeth hardness, which can be used for gingival exercises, both can be detached, and standard articulator. Fixed with metal bolts, all isolated teeth can be replaced according to actual needs. Equipped with simulation head mold installation accessories, which can be used with the simulation head mold system. Suitable for tooth preparation exercise, porcelain crown preparation and car cavity, etc. Specifications: Material: Resin Color: As The Picture Shows Package Weight: approx.300g Size: approx.10.7x7.7x3.03cm/4.21x3.03x1.19in Package Includes: 1Pc x Teeth Model note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!