Description: 【Construction】: This oil gauging tape features a sturdy aluminum alloy frame and a brass plumb bob, ensuring long term durability and reliability in various environments 【Practical Design】: The measuring tape with brass plumb bob is designed to resist wear and rust, making it ideal for use in oil fields, ships, and other containers holding petroleum or other liquids 【Innovative Anti Twist Mechanism】: Equipped with a rotating anchor head to prevent the tape from spiraling, this tool ensures accurate measurements time 【Comfortable Handling】: The rubber handle provides a comfortable grip that is both slip resistant and ergonomic, allowing for ease of use during extended measuring tasks 【Comprehensive Measurement Capability】: Additional dimensions of 30cm for the body length and 9x3cm for the plumb bob; this Oil Tank Gauging Tape is great for accurate depth measurement needs in various industrial applications Size Chart: Product Length 30cm/11.81inch plumb bob 9cmx3cm/3.54inchx1.18inch Package Includes: 1 Oil Tank Gauging Tape Note: Please allow slightly errors due to manual measurement and different monitors.