Haenim PPSU Straw Handle Set Bottles[Durability & Sterilisation & Versatility]About the product: Haenim PPSU Straw Cup baby bottles are designed to baby when start using straw cup to drink water or milk. PPSU materials is light, durable, and heat resistance. The high quality, imported PPSU material is a light but durable plastic, and sterilisation versatility. Portable and resistant to higher temperature sterilization, bottle can be used to heat up milk directly. It can withstand repeated sterilization. Safe in UV Sterilizer,