Specification Brand : Tissting BulletPoint1 : 【Spring measurement machine】The spring measurement machine has anti fatigue spring, which can ensure accurate measurement even after reuse. It can help you complete the laboratory and effectively teach activities. BulletPoint2 : 【Durable Materials】The 5N spring test machine is made of plastic and iron material, which is stable and durable to meet the experimental needs. Adjustable pointers and proportions boards to facilitate reading. BulletPoint3 : 【Portable】Compact power regulations with light design, easy to carry and store. Suitable for mechanical experiments in elementary and middle schools. This force plan is simple and suitable for students' operations. BulletPoint4 : 【Multi application】High performance spring test machine can be used for middle school physics and mechanics teaching demonstrations, student experiments, etc. This force can still maintain the measurement accuracy after being used multiple times. BulletPoint5 : 【After sales Service】Your satisfaction is our greatest pursuit, and we are committed to providing customers with a pleasant shopping experience and satisfactory after sales service. If you have any questions, you can contact us at any time and we will give you a satisfactory answer. CareInstructions : Hand Wash Only Color : unknown IncludedComponents : Electronic Measuring Spoon ItemName : Plastic Tubular Spring Scale, 4 Pcs Spring Dynamometer 5N Accurate Portable Bar Force Meter for Physics Mechanical Experiment ItemPackageDimensions_Height : 1.18 inches ItemPackageDimensions_Length : 7.09 inches ItemPackageDimensions_Width : 4.72 inches ItemPackageQuantity : 1 ItemTypeKeyword : industrial-spring-scales Manufacturer : Tissting Material : Acrylonitrile Butadiene Styrene (ABS) ModelNumber : 5531012BQVY NumberOfItems : 1 PartNumber : Tissting9w6d48xiuz ProductDescription : Specification: Item Type: Spring Dynamometer Material: Plastic, Iron Product Specification: 5N