ʻO OB-1 ka mea hoʻomālamalama optical maikaʻi no ka fiber polyester, a hoʻohana nui ʻia ia i ABS, PS, HIPS, PC, PP, PE, EVA, PVC paʻa a me nā plastics ʻē aʻe. Loaʻa iā ia nā hiʻohiʻona o ka hopena keʻokeʻo maikaʻi, ke kūpaʻa wela maikaʻi a me nā mea ʻē aʻe.