Description Description : 1.BPA Free The bottle is made of PP which is clear and BPA free. 2.Compact provides convenience for carrying out Safe! Light! Unbreakable! Convenient for travel! 3.Sanitize with boiling water or microwave steam . The PP is heat resistant up to 100℃ which enables to sanitize by boiling water or microwave steam. 4. Anti tearing ring 5. Teething nubs 6. Circular rib 7. Tensile strength design 8. Wide base design 9. U shape ventilated system