It has assisted key cups that helps the student with smaller hands play more comfortably. The JFL700WD Waveline flute is the new standard in curved headjoint technology. Patented WaveLine Technology Headjoint reduces the disctance between lip plate and the keys creating better instrument alignment and easier tone production. Assisted Fingering Keys are designed for flutists of smaller stature to ease hand position. One piece body to low D reduces overall weight for better balance and playing comfort.