The Sack Exchange New York Jets Autographed Mark Gastineau, Joe Klecko, Abdul Salaam & Marty Lyons Full Size Football Helmet JSA.

Includes a Certificate of Authenticity from JSA 90-day Satisfaction Guarantee: if you are not completely satisfied with your piece of memorabilia, you have 90 days from when you receive it to return the item in its original condition and receive a full refund