The JP271SW builds on the offering of the JP171SW by providing a higher specification option that is particularly popular with training bands and advanced students. Unique benefits Designed in collaboration with Smith-Watkins, the JP271SW benefits from their specialist expertise and professional components. Constructed from a High Grade 80:20 Brass, the JP271SW features a one piece bell for extra resonance, and high tolerance monel piston valves. A specially designed Smith-Watkins leadpipe offers a free blowing experience and encourages a warm tone. The JP271SW features 1st and 3rd valve slide triggers similar to professional models to assist with tuning. Specification Model: JP271SW, JP271SWS Key: Bb Bell Size: High Grade Brass - 123mm (4.84"), One piece Valves: Piston 3 Bore: Medium-Large 11.68mm (0.460") Water Key: Lever 2 Body: High Grade Brass Finish: Lacquer (JP271SW) Finish: Silver Plated (JP271SWS) Lyre Box: Yes Mouthpiece: JP 4B Leadpipe: Smith Watkins design Instrument Weight: 1.12Kg (2lb 8oz) Weight with case: 3.78Kg (8lb 5oz)