Usage Tips:Features:1. Compared with the traditional , the Bunsen burner does not need to be connected to the gas hose and the bottle, and can be used anytime and anywhere, and is very portable.2. The product is equipped with an air intake adjusting sealing door ring. By adjusting the sealing door ring, the flame hardness and temperature can be changed, which is suitable for various practical operation requirements.3. The product is made of yellow brass and is and does not change color.Product Name: Portable Mini Bunsen LightColor: yellowMaterial: brassPackage Contents:1 * Portable Bunsen burnerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.