This is a Seattle Seahawks Full Size Authentic Speed Eclipse Black Helmet that has been hand signed by Russell Wilson & DK Metcalf. Russell inscribed this one, "Let Russ Cook!"   This is a limited edition item and is hand numbered #/12.   This item has the official tamper-proof Russell Wilson serial numbered hologram and matching certificate of authenticity.    It has also been authenticated with the Beckett Witness certification, meaning both a representative from Beckett and Mill Creek Sports witnessed the signing.   It also comes with their sticker and matching certificate of authenticity.   The DK Metcalf signature  was signed in the presence of a Mill Creek Sports representative and comes with their serial numbered hologram and matching certificate of authenticity.    NOTE: The Eclipse Black helmets are very delicate and often have some marks or scratches on them.