Tepi ya duct, wotchedwansotepi ya bakha, ndi nsalu-kapena scrim-back-backed pressure-sensitive tepi, nthawi zambiri yokutidwa ndi polyethylene.Pali zomanga zosiyanasiyana zogwiritsa ntchito zomangira ndi zomatira zosiyanasiyana, ndi mawu akuti 'tepi' nthawi zambiri amagwiritsidwa ntchito kutanthauza mitundu yonse ya matepi ansalu amitundu yosiyanasiyana.Tepi ya ductnthawi zambiri imasokonezedwa ndi tepi ya gaffer (yomwe idapangidwa kuti ikhale yosawonetsa komanso kuchotsedwa bwino, mosiyana nditepi).Kusiyanitsa kwina ndi tepi yosamva kutentha (osati nsalu) yotchinga yomwe imathandiza potseka ma ducts otentha ndi ozizira, opangidwa chifukwa tepi yofananira imalephera mwachangu ikagwiritsidwa ntchito panjira zotenthetsera.Tepi ya ductnthawi zambiri imakhala imvi ya silvery, komanso imapezeka mumitundu ina komanso ngakhale zosindikizidwa.
Panthawi ya nkhondo yachiwiri ya padziko lonse, Revolite (omwe anali gulu la Johnson & Johnson) adapanga tepi yomatira yopangidwa kuchokera ku zomatira za raba zomwe zimagwiritsidwa ntchito pa nsalu yolimba ya bakha.Tepi imeneyi inkakana madzi ndipo inkagwiritsidwa ntchito ngati tepi yosindikizira pamilandu ina ya zida panthawiyo.
“Bakha tepi” yalembedwa mu Oxford English Dictionary kuti yakhala ikugwiritsidwa ntchito kuyambira 1899;”matepi” (ofotokozedwa kuti “mwina kusintha kwa tepi ya bakha”) kuyambira 1965.