Model: FL 21TG Key: C, 17 covered keys Body Material: Cupronickel Finish: Sandblast Gold plated body & key Key System: In-Line E Key Mechanism: Without Length: 705 mm Outside Diameter: 20 mm Inner Diameter: 19 mm Accessories: Cleaning Rod, Cleaning Cloth, Joint Grease Packing: Durable Plush Lined Hard Case