Barry Sanders Signed Detroit Lions Authentic Lunar Speed Flex Helmet BAS 36918 The number in the listing title is just an inventory sku for our records and is not the authentication number. The item pictured is a stock photo unless otherwise noted. This is a Detroit Lions full size authentic lunar speed flex helmet that was personally autographed by Barry Sanders. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.