BPA free. 100% leak-proof; spill-proof; break-proof guaranteed. Seal Zone technology. Easy grip shape. Made by Nuk. Nuk is proud to make Gerber tableware products. For 60+ years, Nuk has helped prepare moms for baby's changes with expertly engineered products. You've got this, mom! Promotes safe, independent drinking. Unique flow control valve, easy for child to drink. Bite-resistant spout. Dishwasher-safe. Note: Performance guaranteed under normal use. Not intended for use with pulpy juice, carbonated beverages, or hot liquids. Seal Zone technology. For a leak-proof seal, twist lid closed until the arrow is within the Seal Zone indicated on the cup rim. Nuk-USA.com. Made in USA.