Auto straw replacement set for sippy cup
Materials:
Sipper Straw/Tube：Silicone (-20°C~+100°C／-4°F~+212°F)
Tube Bead ： Polypropylene、Stainless Steel (-20°C~+100°C／-4°F~+212°F)
 
Attention: Tube bead contains stainless steel, please DO NOT put it in the Microwave for heating.