Adjustable flame size: The refillable flame size adjustment valve is located at the bottom of the lighter. It allows you to control the flame size by supplying butane gas through the center vent. Refillable and easy to use: A large flame adjustment wheel and a bottom refill port enable flame size adjustment without any tools. Refill is straightforward by following the manual. Visible gas window: The lighter has a large fuel reservoir with a clear gas window to check the fuel level at a glance. You can monitor fuel to avoid sudden depletion during use. Durable material and feel: Made from density material, perforated and electroplated, providing a solid texture, durable weight, and hand feel. Practical use scenarios: Outdoor camping or hiking: reliable ignition for camp stoves or grills with adjustable flame control. Barbecuing and grilling at home or away from home: quick ignition and steady flame for charcoal or gas grills. Indoor tasks: lighting candles, gas stoves, or other small flames with controlled flame size.