pro tip); and width of the arms that support the top tube. It is smooth, lucid with proper instrumental timbre. Great sound and great nose isolation. If one tries to adjust the angle, the arm eventually slips until the bike is in the horizontal position again. Received as expected thanks 5 mm jack as well. Thats the reason I gave it 4 stars. This is the disadvantage of not being able to try on what you are buying. Its a big risk. This is a great spice rack.