This Autographed Full Size Speed Rep Helmet W/ Uv Mirrored Back Acrylic Display Case has been Personally Signed by Rob Gronkowski of the New England Patriots. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Steiner. We have multiples of this same item. While the photographs are representative of this item, the size, placement and strength of the signature may vary. Each item is hand signed, therefore, each autograph is unique.