Le yi-intshi ezingama-20 ubude obuthe tye ityhubhu bong eneentlobo ezine zeziqhumiso.Kukho itayara perc, Swiss perc, honeycomb perc kunye perc umnwe.Ke inesistim entsonkothileyo yokucoca, enokuthi ipholise ngokuthe ngqo kwaye icoce umsi ukwenza eyona nto igudileyo.Inesiseko esityebileyo kumbala omhlophe wejeyidi, iyenza ime ngokuzinzileyo.I-Honeycomb perc ilungile ngokwenene ekuhluzeni uthuthu kunye namanye amasuntswana afihlwe kumsi, asebenza ngamanzi ukuze afumaneke ngokugudileyo kwimifuno.I-Swiss perc inomphezulu obonakalayo wokudibana nomsi ukuwupholisa.Kwaye igumbi apho itayara perc kwindawo yokumisa ngokugqibeleleyo amanzi inyuka iye emlonyeni womsebenzisi.Zonke ii-bongs zinezixhobo ezihambelanayo.