The Wedge TH71 is similar in size and playing characteristics to a Denis Wick 5 tenor horn mouthpiece, but with Wedge advantages. Inner Diameter: .71 inches (18.03 mm)
The Wedge TH73 is similar in size and playing characteristics to a Denis Wick 4 tenor horn mouthpiece, but with Wedge advantages. Inner Diameter: .73 inches (18.54 mm)
The Wedge TH75 is similar in size and playing characteristics to a Denis Wick 3 tenor horn mouthpiece, but with Wedge advantages. Inner Diameter: .75 inches (19.05 mm)
The Wedge TH77 is similar in size and playing characteristics to a Denis Wick 2 tenor horn mouthpiece, but with Wedge advantages. Inner Diameter: .77 inches (19.56 mm)
The Wedge TH79 is similar in size and playing characteristics to a Denis Wick 1 tenor horn mouthpiece, but with Wedge advantages. Inner Diameter: .79 inches (20.06 mm)