Synea Straigth and Contra-Angle Hand Pieces: Uniquely Designed for Restoration and Prosthetics The Synea Straigth and Contra-Angle Hand Pieces were uniquely designed to meet the requirements and needs of its users. The device is ergonomically designed to be pleasing to the eyes, durable and to produce high quality performances when used. These devices are ideal for cavity and crown preparation and for the removal of fillings and bridges. Its features and advantages include: It comes in two head sizes which can be used individually It is ergonomically designed to provide an excellent grip and an optimized shank profile in its monobloc design Its body parts is constructed from stainless steel for durability It can be disinfected and sterilized The new surface coating makes cleaning easier, and provides a comprehensive protection and long-term value retention