- I-ERGONOMIC DESIGN-Uyilo lwebhontsi elingundoqo lubonelela ngentuthuzelo enkulu, lomelezwe ukuthungwa okungaphezulu, kunye nokuphuculwa kobuchule.
- ULUHLU LOKUSETYENZISWA -Iiglavu zesikhumba segusha zifanelene kakhulu nomsebenzi wokukrazula kancinci njengokufulela, ukugcinwa, ukudubula, ukuqhuba, ukulima, isixhobo sombane/ ukusetyenziswa kwesixhobo sesandla, ukusebenza kwezixhobo, nokunye!
- IYAQHELEKA: Uyilo lwebhontsi elingundoqo longeza ubuchwephesha kunye nokuguquguquka, ngelixa ukusikwa kubeka umthungo kwindawo yendalo yesandla, ukonyusa intuthuzelo iyonke.