A mount arm has a first end and a second end where the first end is configured to be mounted to a helmet. The method provides for the addition of an associative polymer, a second component and optionally a siliceous material to the papermaking slurry. The ink has a synthetic resin which is a polycarbonate resin, a polyester resin or mixtures thereof. Further, according to this program, when a slice plane is specified in one of the 3-dimensional images on the left and right sides, a slice plane at the symmetrical position is automatically formed in the other image.