Optimum®+ SingleFile™ Slim Fit Gutta Percha Points are designed for use with Benco Dental's popular Optimum®+ NiTi Gold SingleFile™ reciprocating file system. These high quality gutta percha points are precision machine-rolled. Cadmium-free and ISO color-coded for easy identification. mm length-marked. Slim fit. Offered in a box of 60.