Protects them during assembly and dismantling. The Lipstick style is designed for ease of use with less mess and even less stress on you and your instrument's joints! A must have for any woodwind player. Practical and very convenient cork grease is suitable for all Woodwind instruments, and protects them during assembly and dismantling. The Lipstick style is designed for ease of use with less mess and even less stress on you and your instrument's joints! • MFSKU RCRKGR01 • UPC 046716108067