Besson New Standard 110 Bb TrumpetThis student trumpet has been specially designed for entry level trumpet players. The leadpipe is designed to make this model easy to blow, but gives a nice brilliant trumpet sound as well. Special attention was given to ensure perfect tuning. The space around the valve block is slightly smaller than on average trumpets to give better handgrip for small hands. Technical specifications Key : Bb Bore :. 460" 11,68 mm Bell : 2 piece brass 4. 84" 123 mm