DescriptionThis is a spring dynamometer, with two scales are suitable for different needs. Made of high-quality, strong and durable material for long time use. Smooth surface, no burr, stable longevity.They are not easy to damage. The appearance design of the product is simple and generous. Simple design, chic and useful. Compact and lightweight, convenient to carry.Features- Material: Plastic, Metal - Size: About 40x8.7x1.5cm/15.72x3.42x0.59inch - The spring dynomometer is made of premium spring and hanging hook, which ensures great rigidity, sturdiness and corrosion resistance. - It is perfect for classroom and field applications to measure weight and to explore physics principles of force and mass. - Lightweight, reasonable size, easy and convenient to carry and store. - Deepen my understanding of force and improve my interest in learning. - It is safe, no harm to human health. You needn't worry about its safety.
