Feature 1、SIMPLE DESIGN: The indicator is easy to use and it has a color scale that changes according to the gas level. Users can easily judge the gas level according to the color change. 2、LIGHTWEIGHT: The magnetic gas level indicator has a small and lightweight design, which is easy to store and carry around without taking up too much space. 3、PREMIUM MATERIALS: Made of premium PET plastic, liquid crystal and soft magnetic, sturdy and durable, not easy to break, deform or bend. It can still maintain good color and shape under long term use to ensure the service life. 4、EASY TO USE: Simply turn on the magnetic gas level indicator, place it on the gas level tank and wait for about 10 minutes to read the displayed value. 5、WIDELY APPLIED: Easy to disassemble, widely used in various scenarios such as outdoor traveling, camping, barbecuing, boating, hiking and so on. It can help users keep abreast of the gas level during various activities and meet different needs. Item Type: Magnetic Gas Level Indicator Material: PET Weight: Approx. 138g / 4.9oz Package List 5 x Magnetic Gas Level Indicator