A New York Giants Speed Lunar NFL Mini Helmet Hand Signed by Devin Singletary. The signature and item are in excellent condition. Devin is an NFL running back for the Buffalo Bills. He was drafted Round 3 in the 2019 NFL Draft. He played football in college at FAU. AUTHENTICATION: Your item is tagged with a SmarTag powered by Prova Technology, which gives you digital access to your items authentication records, which includes a proof picture from the signing.