The U.S. Consumer Product Safety Commission (CPSC) is warning consumers to immediately stop using Kopobob kids’ multi-purpose helmets because they can fail to protect riders in the event of a crash, posing a risk of head injury.

CPSC said the helmets do not comply with the impact attenuation and certification requirements of the mandatory federal safety standard for bicycle helmets, which applies to multi-purpose helmets.

The seller, Xingdetui Outdoor, of China, has not agreed to recall these helmets or offer a remedy to consumers.

The Kopobob kids multi-purpose helmets were sold online at www.amazon.com and other e-commerce sites for between $20 and $22. The helmets were sold in size Small, fitting a head circumference of about 18.9 to 21.25 inches. The helmets are red with black accents, with a black strap, a red and black buckle, and an adjustable spin dial on the back. The helmets have the word “Kopobob” on the sides in black lettering. A white warning label with “Model: WST-169” and “Made in China” is inside the helmet.

CPSC tested the Kopobob kids multi-purpose helmets subject to this warning and determined the helmets failed to meet the federal safety standard. CPSC urges consumers to stop using, cut the straps, and dispose of these helmets immediately. Report any incidents involving product injuries or defects to CPSC at www.SaferProducts.gov.