This is a kind of agricultural equipment for spraying agricultural pesticide in paddies or fields, and smaller sprayers are also used to repel pests. A large sprayer is composed of the tank containing agricultural pesticide, the pump used to draw up the pesticide from the tank, and the injector for spraying the pesticide. Shoulder straps are attached to both sides of the large sprayer to allow it to be carried on the back. Smaller sprayers are integrated, with the cylindrical tank, spray nozzle, tube and handle assembled in one unit. Sprayers were generally made of iron, while the handle was made of wood.