The SUPER-SIZED version of the original humidifier for string instruments, DAMPIT has been protecting wood instruments for over 40 years. Invented and patented in 1966 by profesional violinist and composer, Ralph Hollander, the DAMPIT has protected the instruments of thousands of musicians worldwide. The DAMPIT is the most economical, efficient and time-tested system for keeping your instrument properly humidified. Other systems claim to maintain humidity levels but will not raise humidity under dry conditions. The DAMPIT does both which prevents cracks and restores damaged wood. • MFSKU SPIT • UPC 642491000079