Jakar da ke rufe ta tsakiya, wacce aka sani da sutturar taɓawa, ita ce ƙamus na musamman a cikin masana'antar marufi. A takaice, jakar ce mai ɗaukar hoto tare da gefuna hatimi a bayan jaka. Rukunin aikace-aikacen baya jaka ne sosai. Gabaɗaya, alewa, bagedged kai tsaye da kayan kiwo duk ana iya amfani da jakar da madara, kuma ana iya amfani dashi don shirya kayan kwalliya da kayayyaki.