FenderMate Left Narrow, Light Green 100/Value Pack. Combines a pre-curved wedge and sectional matrix into one device that minimizes complication and procedure time on small to medium preps-works for 75-80% of Class II restorations. Inserts quickly and easily. Its patent-pending curve follows the contours of the tooth and firmly seals the cervical margin without an additional spring force. 0.002" thin integrated matrix has a pre-shaped contact area that reduces the need for burnishing.