Spin Strong, LLC warrants to the original purchaser that the product will be free of defects in materials or workmanship for 30 days from the date of purchase. Also, Spin Strong, LLC offers a 30 day money back guarantee. Only valid in the USA. All returns require a return authorization number. Please email us at firstname.lastname@example.org or call 1-800-747-0316 for a return authorization number for any return or exchange.