Features 5-Piece 1 Set: Includes 5-Piece Glass Burning Lamp Bottles, 250mL Large Capacity, With Extra Long Wicks, You Can Cut It To Any Length. Sufficient quantity, easy to use and replace. If you accidentally break one, you've got four others to work with. Wide Range of Applications: These incendiary light bottles are suitable for use in laboratory, classroom or home science equipment that requires a geothermal source. Light weight, smooth surface, will not hurt your hands. Glass Bottle: The body of the burning lamp is made of high-quality glass, which is wear-resistant and corrosion-resistant and has a long service life. Easy to use and operate. Easy to Observe: The alcohol burner lamp is transparent, which is convenient to observe the internal liquid usage, and the operation is safe and reliable. Tip: Do not tilt a burning alcohol lamp to prevent alcohol from spilling and causing an accident. Easy to Operate: These laboratory molotov cocktails are reusable, durable, long burn time, and quick and easy to put out fires. Suitable for home and laboratory. A capped alcohol lamp extinguishes the flame and prevents the alcohol from evaporating, keeping the wick dry and easy to ignite. Do not blow out the alcohol lamp, just cover the flame with the lamp cap that comes with it. Specification: Item Type: Burning Lamp Bottle Material: Glass Uses: Ideal for laboratory, classroom or home science equipment requiring a low heat source Volume: 250mL Package List: 5 x Burning Lamp Bottle Note: Do not tilt burning light bottles to prevent liquid spills and accidents. Package List 5 x Burning Lamp Bottle