Irotha
Inxalenye ejikelezayo yevili ethwele izikhewu.
Kumxholo
Ijikeleza malunga ne-0.3–0.5 yemijikelo ngomzuzwana, ngokuchasene nebholaizixhoboIbholaIbhola encinci ephoswa emzileni ngokuchasene nerotha. Iibhola zanamhlanje zenziwe nge-ivorine okanye nge-Teflon, zi-18–21 mm.Funda yonke →. IsikhewuizixhoboIsikhewuEsinye sezikhewu ezingama-37 ezinamanani kwirotha. Kwakhona: slot, cup.Funda yonke → esingaphantsi kwendawo yokuwa sixhomekeke kwisigaba serotha ngelo xesha.
Iirotha zilungelelaniswa njengamavili emoto, ngezinto ezincinci ezinobunzima, ukuya kumda othintela nasiphi na isikhewu ukuba sithandwe ngumxhuzulane.