Aaron Donald, former All-American defensive tackle for the Panthers, has hand signed this Pitt Riddell Speed full-size replica helmet at a private signing. This item comes with a certificate of authenticity (COA) from PSA/DNA and was signed in the presence of one of their representatives. You will receive a serial-numbered COA along with a matching serial-numbered sticker on the helmet. The authenticity can be verified online by entering the serial number.Item pictured may not be the exact item you will receive. It will be similar quality, and we guarantee your satisfaction.