This listing is for a set of 4 valve springs to fit all Douglas 2 3/4hp (350cc) models. Springs are high quality UK manufactured to original pattern and design.
There are 4 springs per pack - enough for two cylinders/one engine. Shown in the photograph is my own Douglas 2 3/4hp of 1919/20 manufacture. They are manufactured by my main UK spring maker who has been making valve springs for a variety of classic motorcycles for many years
Note: we also manufacture the valve collars shown in the photos, see items 0729 and 0730