Monoject Irrigation Syringe #412, 12cc with Curved Tip, Non-Sterile, Box of 50 Syringes. Used for pressure irrigation. Disposable for easy cleanup. Curved tip design for improved access. Reusable finger grips. The Monoject 412 Syringes are non-sterile, disposable plastic instruments used to dispense various dental impression materials and are perfect for pressure irrigation. These ungraduated syringes can hold 12 ccs and feature curved tips for better access and plastic finger grips that can be reused.