Boston's height-adjustable music stands are handy to put your sheet music or lyrics on. To prevent your sheet music or text from blowing away or sliding down, the lectern has two arms with a spring clamp. The lectern is easy to fold and slide together for transport. This, in combination with the included carrying case with shoulder strap, makes this a frequently used lectern. There are two versions, namely the MS-40-BK (maximum height 110cm) and the MS-50-BK (maximum height 140cm). The height is measured from the floor to the bottom of the lectern.