Pengilar is a fishing gear with the working principle of trapping fish so they can't get out. The main material for making it is bamboo or rattan. The entrance of the trap is commonly called “injab” and another escape vent to take the fish caught. Because it has a shape like a taro leaf, this tool is also often called a taro leaf trap. It's one of the environmentally friendly fishing gears, with the ISSCFG classification code 08.2.0, categorized as trap fishing gear.

To attract fish into the trap, worm bait, bycatch, and other baits are used. The bait is placed in the bag and hanged in the trap. The trap will be checked twice a day to ensure the fish caught still survive. It's usually operated in shallow waters, on the banks of rivers, swamps, valleys, and canals. Part of the body of the trap is covered with grass, tree branches or something else to cover the t o o l . F i s h u s u a l l y c a u g h t a r e t r i c h o g a s t e r , r a s b o r a t r i l i n e a t a , helostoma temminckii and other types of fish.