Walmart has issued a recall for a popular water bottle due to safety concerns. The U.S. Consumer Product Safety Commission (CPSC) published a notice on July 10, reporting that the recall affected approximately 850,000 water bottles sold in Walmart stores and online across the United States since 2017.

The lids on the 64-ounce stainless steel bottles can eject and strike consumers, two of whom reported permanent vision loss as a result, safety regulators said.