The 105mm Type 91 Howitzer was introduced in 1931 and was based on the French Schneider Canon de 105mm mle 1913. It was designed to be towed by 6 horses. It fired a 15kg high explosive shell. The kit is a 3D printed kit with plenty detail and only 6 parts including the gun, shield, two spoked wheels and two trails. While the image shows one, the sale is for four guns.