Lyons Glockenspiels are offered in two bar widths-standard and wide. Wide width bars are recommended for small children who may need a larger target area. Both widths share the same tonal range, material and construction. All glockenspiels feature aluminum bars, natural finish wood boxes, mallets, and two extra F# bars and one Bb bar on diatonic units.The note range for this instrument is C#5 G#6.