Walmart is recalling about 850,000 stainless steel water bottles because the lid can “forcefully eject” and unexpectedly strike consumers — resulting in permanent vision loss for two people to date.

Walmart ( WMT, Financials) is recalling approximately 850,000 Ozark Trail 64-ounce stainless steel bottles due to a dangerous lid malfunction that has caused serious injuries, including permanent vision loss in two individuals, according to a July 10 alert from the U.S. Consumer Product Safety Commission.

Manufactured in China, the 64-ounce stainless steel portable containers are sold in Walmart stores and nationwide for about $15.