Flag-A-Tag Sonic Boom Flag Belts, Scarlet, 52-Inch (One Dozen)Flag-a-Tag 8674215 Sonic Boom Flag Belt - 42 (DZN) GoldFeatures of Flag-A-Tag Sonic Boom Flag Belts, Scarlet, 52-Inch (One Dozen) Featuring Flag-A-Tags patented release system Sonic belts emit an audible pop to signal the play is dead Built for institutional use Flag size: 2W x 17-1/4L S..