The Herco HE106 Mainenance Kit includes everything you need to keep your composition (non wood) clarinet performing at its best. Includes HE50 Clarinet Chamois, HE85 Mouthpiece Brush, HE72 Tube Cork Grease, HE73 Thumb Rest Cushions (2), HE96 Polishing Cloth, HE451 Pure Formula Key Oil, Herco I. D. Tag, Herco Complete Care Instructions. Everything you need to clean and care for your composition clarinet. Keeps your Composition (non-wood) clarinet performing at its best. Herco is the standard in Band / Orchestra care products.