Rapid-i stick and RapidStraw vitrification device for storing human eggs and embryos, used by the fertility team at the Newcastle Fertility Centre to carry out mitochondrial donation therapy (MDT), made by Vitrolife, c.2023. Consists of plastic 'straw' and plastic storage pipette that has a small opening enough to hold an egg or embryo. The pipette is then sealed within the straw before being placed in liquid nitrogen for storage. Rapid-i stick and RapidStraw, vitrification device for storing human eggs, used within mitochondrial donation therapy, c.2023 circa 2023