ʻO kēia huahana he ʻāpana spherical a i ʻole ʻano ʻano like ʻole. ʻIke ʻia ka ʻulaʻula poni a i ʻole ʻalani ʻulaʻula me ka wai. ʻO kāna hana nui ʻo ka silicon dioxide a me ka hoʻololi ʻana o ke kala me ka haʻahaʻa like ʻole. Ma waho aʻe o ka hana e like me ka uliulisilica gel, ʻaʻohe cobalt chloride a ʻaʻohe mea ʻawaʻawa, ʻaʻohe pōʻino.