D'Addario Instrument Care Kit, Complete Finish Care The D'Addario Instrument Care Kit gives you everything you need to keep your instrument playing, looking, and sounding its best - from the included headstand neck cradle to the cleaning and care products, this kit contains all the essentials for players of every skill and style. The included storage case also provides easy access to all these products for the ultimate care for your acoustic, electric, and bass guitar.