Amazon seller tool that estimates FBA fees, margin, ROI, and details about Variations. We make product research for 3rd party sellers on Amazon.com easier. Variation Viewer allows you to see the prices, offers and important data for variations on products like shoes and clothing. In stock, out of stock, price gaps and more. ** For the extension to work you need to create an account on RevSeller.com first and complete SP-API setup. Works on Amazon's .com and .ca marketplaces (currently not available for other marketplaces). Free trial for 30 days with no payment info required, then an annual subscription option. After adding the extension, please go to https://revseller.com to signup. Not Affiliated With Amazon.com or its Subsidiaries