MEASUREMENT AND SIZE: Each dropper is graduated as follows: 1 ml, 2 ml, 3 ml, 4 ml, 5 ml, with no smaller markings in between. Total length including silicone squeeze top is 4.72 inch (12cm).SAFE MATERIAL: 8 Pcs liquid droppers, each dropper is made of food grade silicone and plastic.FUNCTION: Mainly used to dispense liquid in minimal amounts to fill in small cavities for candies making, food decoration, essential oils, good choice for kids creative activities and fun science experiments.DETACHABLE: There is no glue used to connect silicone and plastic. Easy to remove the silicone by pulling and separating from the plastic pipette.EASY TO STORAGE: It is safe to put in dishwasher, oven, freezer and refrigerator. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.