1.Isethi yethoyizi ekhalayo ethandekayo: inhlanganisela yamathoyizi amathathu amade namafushane amafushane ashukumisayo ahlabayo,
2.Iziklinya ezimbili ngaphakathi: Amathoyizi aneminciza ekhanda nasemsilani ezodonsa ukunaka kwenja.Ama-squeakers ahlekisayo anephepha eliqinile eliqinile ngaphakathi azogqugquzela umuzwa wabo wemvelo wokuzingela futhi abakhuthaze ukuthi babuye ukuze bathole okwengeziwe.Ifanele amathoyizi amakhulu kuya kwaphakathi nendawo.
3.Amahora okuzijabulisa: Uma ungekho, amathoyizi ahlabayo angasiza ukukhulula ukukhathazeka nokucindezeleka kwawo, ukuhlanza amazinyo abo, nokunciphisa ukuziphatha kwawo okulimazayo Ungabe usazikhathaza ngenja yakho iyodwa ekhaya, noma imicamelo, osofa, izicathulo, njll. ukubhujiswa.Ngamathoyizi izinja ngeke zizwe nesithukuthezi noma zihlafune indlu, amandla azo angaphezulu azokhululwa.
I-4.Impilo eyengeziwe, ukunakekelwa okwengeziwe: Amathoyizi a-squeaky asiza izinja ukuba zizivocavoce kakhulu futhi zithuthukise impilo yazo, isikhathi sokudlala ikhwalithi ndawonye sizokwandisa izibopho zabo nabanikazi.
5.Amathoyizi oboya okulingisa ekhwalithi ephezulu: Ubuchwepheshe be-electroplating obuthuthukisiwe, obugcwele ama-squeakers angcono kakhulu, amathoyizi ethu awathandeki ezinjeni kuphela kodwa aphephile, ahlala isikhathi eside futhi eco-friendly.