ʻEkolu mau hole flaber optic stract mode hoʻohālike e hana ana i nā hana likeʻole o nā funks likeʻole. ʻO ka lua mua o kēia frapper optic straps counts i nā'āpana 1.6-3 mm flaber i lalo i ka papa 600-900 micron Hoʻopili ka lua i ka lua o ka 600-900 micron buffer e uhi ana i ka 250 micron coating a me ke kolu o ke aniani i lalo o ke aniani he 125 micron a iʻole nā mea kilokilo Hanaʻia ka lawelawe o TPR (Thermoplastic Rubber).