Xadhkaha xargaha rafaadka culus ee caadooyinka ah waa naqshad cusub, iyada oo loo marayo tignoolajiyada wax qabad ee heer sare ah iyo agab cayriin oo tayo sare leh, waxqabadka xargaha ratchet-ka culus ee caadada u ah ilaa heer sare. Waxaan ku fiicanahay faahfaahin kasta oo ku saabsan xargaha xargaha roodhida ee culeyska culus , dammaanad qaadka heerka tayada, si aan kuu keeno khibradda badeecada ugu fiican. Lishenflex waa xirfadle Shiinees ah xargaha oo soo saara iyo alaab-qeybiyaha, haddii aad raadineyso xargaha xargaha culus ee qiimaha jaban, hadda nala tasho!