The metal measuring spoons are made of food-grade stainless steel that not fade or rub off, and sturdy. The rectangular design is more stable and ensures that the spices not spill. Long handle and narrow shape allow it to be used with all deep or shallow spice jars The measuring spoon set is very precise and can be the perfect companion for your cooking. Each teaspoon has clear graduations on the handle (US and Metric) 1/8 (0.63ML), 1/4 (1.25ML), 1/2 (2.5ML), 3/4 (3.75ML ), 1 (5ml), 1 tbsp (15ml). They are dishwasher safe and can be easily stacked to save space, making them an perfect kitchen set.