RS Berkeley F107B The RS Berkeley FO107B Elite Series flute takes the beginning flutist a step beyond an entry level instrument by featuring open hole keys and French pointed arms. The flute features stainless steel springs, drawn tone holes and Neoprene bumpers which are stronger and more durable than cork. RS Berkeley open hole flutes are known for their warm projecting sound and their outstanding response throughout all registers. The open hole keys on the teacher recommended RS Berkeley Elite Series flute gives this standard model a professional look and feel. Features: -Flute. -Finish: Silver plate. -Key: Bb. -Bell: Brass silver plated. -Lead-pipe: Brass tapered. -Outer slides: Brass silver plated. -Inner slides: Brass. -Pistons: Stainless steel, hand lapped. -Piston springs: Steel-inside spring barrel. -Piston guides: Nylon - 2 prong. -Thumb saddle: 1st slide. -Ring: 3rd slide fixed. -Tuning slide: Single braced. -Water keys: Main and 3rd slides. -Slide lock: 3rd slide screw. -Mouthpiece: 7C. -Lubricant: Premium valve oil. -Case: Wood, cordura covering, zipper closing, case strap, end handle. -Silver plated custom head joint, body, foot joint and silver plated keys. -Complete with a custom black leather case, canvas case cover with shoulder strap and a cleaning rod. -Bore: 0.46. -Bell Diameter: 4.8.