1. **High-Quality Construction**: The L21A Newton Gram Dynamometer is made from robust acrylic plastic, ensuring durability and reliability for various applications. Its sturdy design makes it an choice for both educational and laboratory. 2. **Versatile Measurement Capability**: This Spring Dynamometer features a dual capacity of 2.5N/10N and is calibrated to measure weights accurately by simply attaching the load hook. for scientific experiments and practical demonstrations in schools. 3. **User-Friendly Design**: Equipped with a suspension and a zero adjuster, this dynamometer allows for easy operation. Its clear scale enables users to read measurements effortlessly, making it suitable for primary and secondary education. 4. **Compact and Convenient Size**: With a total length of approximately 21cm (8.27in) and a plastic cylinder measuring about 16.5x2.1cm (6.5x0.83in), this spring scale is compact enough for easy storage and transportation, fitting seamlessly into any classroom or lab environment. 5. **Complete Package Inclusion**: Each purchase includes one high-quality Spring Dynamometer, providing everything you need for effective weight measurement. Please note that additional demo accessories shown in images are not included., Manufacturer: BJdfgE