* Male junior high school students who want to exercise arm muscles: 150 pounds of grip strength can provide enough resistance to help male junior high school students exercise arm muscles.

* Adults with a certain strength training foundation: For adults with a certain strength training foundation, the grip strength of 150 pounds can provide a moderate challenge to help them continue to strengthen their arm muscles.

Please note that everyone's physical condition and training level are different, and it is important to choose the right grip according to personal circumstances. Before using any fitness equipment, it is recommended to consult a doctor or professional fitness coach.