1. High hardness and light weight. 2. Lacunaris and good ventilation. 3. Curing speed fast. 4. Through X Ray excellent. 5. Good waterproof. 6. Convenient operation and better plasticity. 7. Comfortable and safe8. A wide range of use. 9. Protection environments. More Product Features Model NO.: KCF4 Standard: CE Origin: Suzhou China Company: Suzhou Connect Medical Technology Co., Ltd.