Horn Mouthpiece Laskey 775E Model: Laskey 775E Finish: Silver Plated Cup: U Cup, Deep Cup Inner Diameter: 17.75mm Bore Size: 4.62mm Shank: US This is a Laskey horn mouthpiece. I purchased it about six months ago, but it didn't suit me, so I'm selling it. There are some scratches on the shank. With a deep U cup, it should work well with Geyer type horns, as well as Krupse type instruments. Feel free to ask for additional photos or to request a price reduction.