JJ Watt Autographed Houston Texans Chrome Replica Helmet As Is JSA 25351 This is a Houston Texans full size chrome replica helmet that was personally autographed by JJ Watt. There is a little chrome chip on the top of the helmet, and this is the exact helmet that you will receive so please see scans for condition. This helmet includes a certificate of authenticity from James Spence Authentication (JSA) and Denver Autographs.