Since the weight of the finished product is close to that of the original blank, this contributes to greater efficiency in both cost and configuration. These small-diameter blanks are used when equivalent hand press products are not available. The extremely consistent dimensional accuracy enables high precision processing. Thanks to the development of GOBS, no further polishing is necessary, realizing higher production efficiency and lower cost. These enable the production of lenses without centering and polishing.
Various shapes are available, thanks to special dies and low-temperature molding materials.