100% original , authentic and game used ….. autographed and worn pre-game in Super Bowl XLVI by Rob Gronkowski. This is the towel that hung out of the bottom of his jersey that was Velcroed to the belt of his pants …… signed in black marker with his #87 …. We guarantee the signature to pass third-party authentication such as JSA, PSA DNA or Beckett ….. B&E Collectibles LOA will be included …. See images for condition ….. You can immediately buy other awesome memorabilia items in our Ebay Store, User ID: b-e-collectibles.....Thank-you for your business!