Specification Name: Straight punch windproof lighter Material: zinc alloy Size: 83*27*12mm Process: brushed Weight: about 61g Note: Size and weight are measured by hand, please understand that there is a slight error Convenient Flame Adjustment Convenient flame adjustment design, let you get rid of the trouble of looking for adjustment tools. Increase of the falme height should follow the "+" direction of rotation Reduce of the falme height should follow the "-" direction of rotation Refilling Tips? Step 1: Choose Butane Choose the right butane is very important for lighters. In general, high purity and high-quality butane can prolong the life of lighters. In addition, the butane with low purity and poor quality contains too much air, which will cause the lighter to fail or fail to ignite during use. Step 2: Release Gas Before refilling a butane torch lighter, it is necessary to drain any remaining fuel from the lighter. Open the flame adjuster to set the flame height adjuster to a minimum and use a small screwdriver or other tool to push the refill valve down to release the gas in the tank. Keep away from your face and clothes while operating. The positive and negative signs will indicate a larger or smaller flame. Step 3: Filling & Adjust Flame Make the lighter is upside down and place the butane fuel nozzle into the filling valve,refill the lighter about 5-10 seconds. The filling time can be increased or decreased according to the actual capacity of the tank. After filling please wait for two minutes to get reach room temperature before use the lighter. Please remember to adjust increase the flame before using the lighter. If you need any help Please ?Contact Seller? directly from Amazon Buyer Center against your order #. Our friendly customer service normally replies to you within 24 hours.