[Impressive Max Measurement, 330lbs] With a maximum measurement of 330lbs, the GD DYNO-150 is one of the strongest hand grip dynamometers on the market. This makes it a great tool for athletes, fitness enthusiasts, and anyone who wants to improve their grip [Durable Body Material] Made with S45C carbon steel, the GD DYNO-150 is built to last. This material is known for its strength and resistance to wear and tear, ensuring that your dynamometer will last for years to come. Even if you have as strong a grip as a chimpanzee, the GD DYNO Hand dynamometer will withstand your strong grip! [Outstanding Design] The GD DYNO-150 is not only strong, but it also looks great. Its sleek and modern design is sure to impress, making it a stylish addition to your workout routine. [Track Your Health and Physical Status] Measuring your grip strength is an important metric for monitoring your physical health and status. With the GD DYNO-150, you can easily track your progress and see improvements in your grip strength over time. [Easy to Use] The GD DYNO-150 is designed with ease of use in mind. Simply hold the dynamometer in your hand and squeeze to get a measurement of your grip strength. Its compact size also makes it easy to carry with you wherever you go..[ Chellenge the world's grip record with thd GD DYNO-150! Special benefits will be provided to the Top Rankers. GD DYNO-150 Hand dynamometer Size : 9.6 X 5'' (24.5 X 12.8cm) Weight : 2.3lbs (1.05kg), Batteries are not included in the package. (Two AAA Alkaline Batteries can be used)