All the most common maintenance items for the Bach Stradivarius Trumpet. You'll want to keep a kit in your case at all times.
The Bach 1877 Trumpet Repair and Maintenance Kit contains the most common repair parts for Bach Stradivarius trumpets. Kit includes water key springs, valve felts, stem felts, 

• Includes Bore cleaner coil, mouthpiece brush, cleaning rod, cleaning cloth
• Includes valve oil, tuning slide/cork grease and polishing cloth