The Bar Series Gold Edition 10ml Nic Salt refers to a type of e-liquid designed for use with vaping devices. Specifically, it's a nicotine salt e-liquid, which is formulated with nicotine salts rather than freebase nicotine. This results in a smoother vaping experience, especially for those who prefer higher nicotine concentrations. Here's a breakdown of its key features:

Nicotine Salt: Nicotine salts allow for a more efficient nicotine delivery and can be vaped at higher concentrations without harshness, making them popular for people looking for a strong nicotine hit.
Gold Edition: The "Gold Edition" suggests that this variant may be a premium version of the Bar Series, possibly featuring a more refined or sophisticated flavor profile compared to standard e-liquids.
10ml: This refers to the size of the bottle. A 10ml bottle is a common size for nicotine salt e-liquids and is typically the maximum size allowed for sale in many regions, particularly those with specific regulations on e-liquid volume.
Bar Series: This could be a brand or a specific line of e-liquids, often associated with disposable vape pens or similar products. It typically includes various flavors and nicotine strengths.

This product is likely available in different nicotine strengths, and it's typically designed for use with low-wattage devices like pod systems, which are ideal for nicotine salt e-liquids due to their smoothness and efficiency.