This is a Ali Boxing Trunks Authentic Signed that has been Personally Signed & Autographed by Muhammad Ali. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by PSA/DNA ITP #3A74682. This is a PSA/DNA In The Presence item which means a PSA representative was present when this item was being signed. The Muhammad Ali authentication hologram is also on the trunks.Press Pass Collectibles offers a 100% Lifetime Guarantee on all Autographed & Signed Muhammad Ali memorabilia.