Description The mechanical scale is made of premium stainless steel 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. Features - Color: Random color. - Material: Plastic. - Size: 25.5x2.3x2.3cm/ 10.03x0.9x0.9 inch. - Practical spring scale for testing force and gram weighing. - Each scale is equipped with a hanging ring at the for easy hanging, and a hook at the bottom for attaching the item to be weighed. - Premium stainless steelspring and hanging hook ensures great rigidity, sturdiness and corrosion resistance. - With clear calibrations and transparent cylinder design, it's easy to read markings. - Perfect for classroom and field applications to measure weight and to explore physics principles of force and mass.Package list: 2 x Spring Scales