$20 a set of 3 pairs (pink, gray, blue) is expected to arrive in three weeks Korea limited ~ QS patented silicone! FDA certification, quality assurance. QS patented silicone material, antibacterial and mildew-free, durable and easy to clean. Really easy to use and easy to use, Korean silicone is resistant to high temperature! Large temperature range! The color is so pretty. QS patented silicone is a special material for feeding bottle nozzles, which is as safe and non-toxic as a pacifier for babies. Long-term use will not produce toxic substances! Can withstand the temperature of -40℃~200℃, safe and reliable Material: QS patented silicone made in Korea