It is a spindle shaped trap made of fine bamboo strips with fencing like design. The middle portion has the highest girth and tapers towards both the ends. It has two conical shaped trap doors which act as non-return valve. The trapped fish and other aquatic fauna are removed through an opening at one end of the implement. These traps are fixed at the channel or streams of water in the paddy field or shallow waters to capture fish and crabs in the rainy season. These are common across the communities in Assam.