Spin Strong, LLC warrants to the original purchaser that the product will be free of defects in materials or workmanship for 90 days from the date of purchase. If defective, return the product along with the packaging slip (proof of purchase) postage prepaid to the address below for replacement consideration. 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 exchange.