No. 3 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 - 2 x 2 ft., Pennants - 1-1/3 x 3ft., Substitutes - 1-1/3 x 2-2/3 ft.