Blue Football Referee Penalty Flag. Show your support for Prostate Cancer Awareness Month! Now your crew can also be a part of the cause. Our popular penalty flags are now available in LIGHT BLUE. Center weight ball allows you to throw the flag with accuracy and good velocity. Great for spot fouls! NFL style flag made from fade-resistant durable rip-stop nylon material. Patented double-taped "bullseye" design allows this flag to fly straiter than other penalty flags. Weighs 1.9 oz. Proudly Made In The USA.