Segway has issued a recall for all of its Ninebot Max G30P and Max G30LP electric scooters due to a faulty mechanism that can cause the scooters’ handlebars and stem to fold while it’s in use, creating a fall hazard, according to the Consumer Product Safety Commission (CPSC). The company has received 68 reports of the failures occurring, resulting in 20 injuries ranging from bruises and abrasions to lacerations and even broken bones.

Around 220,000 of the recalled scooters have been sold since January 2020 at stores including Best Buy, Costco, Walmart, Target, Sam’s Club, and Amazon. The Ninebot Max G30P can be recognized by its gray and yellow color scheme, while the Max G30LP model is black with yellow accents.

Segway urges consumers to immediately stop using the recalled scooters, but it’s not replacing them. Instead, the company says owners can contact Segway “to receive information to determine whether the folding mechanism needs adjustment and to receive a free maintenance kit.” The kit includes instructions and tools for tightening the folding mechanism on either model, and keeping it maintained to ensure the folding mechanism remains locked while the scooters are being ridden.