I-screw vils eziveliswe yi-Aijiren ziyafumaneka kwiiarhente ezintathu ezahlukeneyo, i-8mm, 9mm kunye ne-10mm. I-caps ye-PP ye-PP yenziwa ngezinto ezikumgangatho ophezulu zePolyProphene. Ukuba inani leesampulu ekufuneka livavanywa lincinci, linokusetyenziswa nge-Microf. Iibhotile ezinamacala ahlukeneyo anezincinci ezahlukeneyo ezifanayo.