ʻO 1000 papahele papa ʻōwili e hoʻokumu ana i ka mīkini kūʻai kaulana i nā ʻāina he nui, ʻo ka laulā Coil ma mua o ka ʻōwili ʻana he 1220mm / 1000mm.Ma hope o 1000mm a i ʻole 688mm ka laula o ka huahana, ʻo ka mea maʻamau ka mea GI, ka mānoanoa mea maʻamau ma waena o 0.8-1 mm.