This product is for temporary storage. Do not use for long-term storage. / Do not allow to come in direct contact with high heat, high temperature or steam. / Do not use on containers with hot food or cups with hot liquids. / Do not use in a microwave or toaster oven.Do not use if the size does not fit.Do not use with dark-colored ingredients.It may retain the color or odor of food.Do not pull it with force or fill with pointed objects.Do not damage the product with pointed objects.Do not let thinner, benzene, alcohol etc. remain on the product.Stop using this product immediately if it becomes damaged.Keep away from fire and other sources of heat.Do not use this product for purposes other than its intended purposes.