Bumpers suna da ayyukan kariya mai aminci, kayan mashin abin hawa, da inganta halayen Aerodyamic na abin hawa. Daga ra'ayi na aminci, lokacin da wani mummunan haɗari ya faru, motar ta iya taka rawar gani don kare jikin motocin gaba da baya; Zai iya taka rawa a cikin kare masu tafiya a cikin taron na haɗari tare da masu tafiya da ƙafa. Game da bayyanar ban sha'awa, yana da ado kuma ya zama wani muhimmin sashi don yin ado da bayyanar motar; A lokaci guda, motar bumper kuma tana da wani tasirin Aerodyamic.
A lokaci guda, don rage rauni ga mazaunan mota yayin da ake yin hatsarin haɗari na gefe, ana yawanci a cikin motar mai tasowa na ƙofar motar. Wannan hanyar tana da amfani, mai sauki, kuma ba karamin canji ga tsarin jiki ba, kuma ana amfani dashi sosai. Shigar da ƙofa mai ƙofar shine sanya katako mai ƙarfi na ƙarfe a kwance ko kuma a faɗakarwa a cikin ƙungiyar ƙofar, don haka motocin da ke gaba, da gefen motar. , samar da "bango bango", saboda mazaunan mota suna da matsakaicin yankin tsaro. Tabbas, shigar da irin wannan ƙafar ƙofar ba shakka zai ƙara yawan farashi don masana'antun masu masana'antu, aminci da kuma fahimtar tsaro zai ƙara yawa.