These are Brand NEW Riddell chinstrap from the 1980s.  All of them are new in condition with no wear to the printing on the straps and no wear to the cup from use.   If you have a helmet from the 1970s-1980’s, you need one of these new chinstrap - these are perfect to use. 

WARNING: Keep your head up. Do not butt, ram, spear, or strike an opponent with any part of this helmet or faceguard. This is a violation of football rules and may cause you to suffer severe brain or neck injury, including paralysis or death and possible injury to your opponent. Contact in football may result in Concussion/Brain injury which no helmet can prevent. Symptoms include: loss of consciousness or memory, dizziness, headache, nausea, or confusion. If you have symptoms, immediately stop and report them to your coach, trainer, and parents. Do not return to a game or contact until all symptoms are gone and you receive medical clearance. Ignoring this warning may lead to another and more serious or fatal brain injury. NO HELMET SYSTEM CAN PROTECT YOU FROM SERIOUS BRAIN AND/OR NECK INJURIES INCLUDING PARALYSIS OR DEATH. TO AVOID THESE RISKS, DO NOT ENGAGE IN THE SPORT OF FOOTBALL.