4pcs Spring Dynamometer Professional High Accuracy Bar Portable Spring Scale for Student Physics

Feature： 1. PREMIUM MATERIAL： Spring dynamometer is made of premium plastic and iron materials, fatigue resistance spring ensures accurate measurement. 2. APPLICABLE： Spring dynamometer can be used for demonstration of physics and mechanics teaching for middle school students and common instrument for student experiment. 3. ADJUSTABLE DESIGN： Spring dynamometer has adjustable pointer and scale plate for easy reading of force. 4. SUPERIOR PERFORMANCE： The spring dynamometer is manufactured to exacting standards with clear and precise scales. 5. EASY TO OPERATE： The portable spring dynamometer is easy to use and suitable for hands on operation by students. Specification： Item Type： Spring Dynamometer Material： Plastic, Iron Usage： Commonly Used in Physics and Mechanics Teaching Demonstration and Student Experiments for Secondary School Students. Scope of Application： Primary and Secondary School Mechanics Experiments. Package List： 4 x Spring Dynamometer