4Pcs Spring Scales for Science Classroom, Professional High Accuracy Bar Portable Spring Dynamometer for Student Physics Experiment Teaching Demonstration (2.5N)
PREMIUM MATERIAL: Spring dynamometer is made of premium plastic and iron materials, anti fatigue spring ensures accurate measurement.
APPLICABLE: Spring scales can be used for demonstration of physics and mechanics teaching for middle school students and common instrument for student experiment or science classroom.
ADJUSTABLE DESIGN: Spring dynamometer scale has adjustable pointer and scale plate for easy reading of measure force.
SUPERIOR PERFORMANCE: The spring dynamometer is manufactured to exacting standards with clear and precise scales.
EASY TO OPERATE: The spring scales for science classroom measure force, is easy to use and suitable for hands on use by students.