The CPSC and Walmart have issued a voluntary recall notice for consumers to get a full refund and stop using or return the Ozark Trail water bottle immediately.

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.

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.