No. 7 International Code of Signal Flag SetNo. 7 International Code of Signal Flags are made of 100% nylon and finished with nylon rope, distance lines and ash toggles. Complete set includes: 26 Alphabet flags, 11 Pennants and 3 Substitute flags. The 40 piece sets include a nylon storage bag. Sizes: Flags - 3 x 3 ft, Pennants - 2 x 4-1/2 ft., Substitute - 2 x 4 ft.