ST-310: The next generation single burner is equipped with a new micro-regulator. [ST-3101] Regulator Stove ST-310 Windscreen [ST-3103] Regulator Stove, Dedicated Windscreen and other small items can be stored together.Comes with a pocket for storing various small items. ST-3104: Large lever assists igniting.Easy to ignite with a single pushIgnition switch aids for regulator stoves.Easy to install.Stove can be stored even with it on.