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 steel spring and hanging hook great rigidity, sturdiness and corrosion resistance. Features - Color: As shown - Material: Stainless steel and plastic - Size: 20 x 2.5 x 2.5 cm - Practical spring scale for testing force and gram weighing. Designed with 25N/ 2500g measurement ranges, measuring in both "g" and "N". - Perfect for classroom and field applications to measure weight and to explore physics principles of force and mass. - 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. - Premium stainless steel spring and hanging hook great rigidity, sturdiness and corrosion resistance. - With clear calibrations and transparent cylinder design, it’s easy to read markings. Package list: 2 x Spring scale