Envelope 1: 2 strings 44 inches long , .025 inch gage, Nylon;

Envelope 2: 2 strings 44 inches long, .031 inches gage, Nylon;

Envelope 3: 2 strings, 40 inches long, .024 inch gage, Silver wound;

Envelope 4: 2 strings, 40 inches long, .027 inch gage, Silver wound;

Envelope 5: 2 strings, 40 inches long, .032 inch gage, Silver wound;