Description _x000D_ _x000D_This is a practical spring scale for testing force and gram weighing. Each scale is equipped with a hanging ring at the for easy hanging, and an S-hook at the bottom for attaching the item to be weighed. This spring scale is designed with 25N/ 2500g measurement ranges, measuring in both "g" and "N", which is suitable for classroom and field applications to measure weight and to explore physics principles of force and mass. With clear calibrations and transparent cylinder design, it's easy to read markings. Premium stainless steelspring and hanging hook ensures great rigidity, sturdiness and corrosion resistance. _x000D_ _x000D_Features _x000D_ _x000D_- Color: As shown _x000D_- Material: Stainless steel and plastic _x000D_- Size: 20 x 2.5 x 2.5 cm _x000D_- Practical spring scale for testing force and gram weighing. Designed with 25N/ 2500g measurement ranges, measuring in both "g" and "N". _x000D_- Perfect for classroom and field applications to measure weight and to explore physics principles of force and mass. _x000D_- Each scale is equipped with a hanging ring at the for easy hanging, and an S-hook at the bottom for attaching the item to be weighed. _x000D_- Premium stainless steelspring and hanging hook ensures great rigidity, sturdiness and corrosion resistance. _x000D_- With clear calibrations and transparent cylinder design, it's easy to read markings.Packing list1 x Spring scale