Features: Compact Size:The unit size is 6.6x3.7x1.9 cm ,about 33g. It is compact and lightweight, which makes them easy to carry around in a pocket or backpack.The lighter features a flap design that protects it from dust and debris when not in use and also prevents it from being accidentally opened. Windproof:This lighter are designed to be able to light in windy or outdoor conditions.The powerful jet flame makes them ideal for outdoor activities such as camping, hiking, grilling, or picnics. Ready to Use:All of those lighters are shipped with butane gas included,you can use it as soon as you receive it.And they are have a little gas regulator to control the size and intensity of the flame. Refillable:Our lighters are designed to be refillable and can be a more cost-effective and environmentally friendly option compared to disposable lighters.You can refill them with a long nozzle butane gas canister.The bottom of the lighter is visible so you can see the fuel inside.