Chef&#039;n SleekStor Measuring Beakers Orange Tonal - Beakers aren&#039;t just for scientists  cooks can use them too! These silicone beakers are heat-resistant up to 650&deg;F and can even be used in the microwave. Their Pinch + Pour design features a pour spout that pops out when the sides are pinched. Plus  the rigid nylon core provides a secure grip and a pop of color. Brilliant! Product Features                          Pinch frames to create pour-spout            Includes 1  2  and 4 cups            Nesting  space-saving design            650&deg;F (340&deg;C) heat and stain resistant silicone            Nylon core            Top-rack dishwasher safe