By regularly carrying out simple maintenance tasks on your instrument, you will keep it functioning at its best, prolong its life, and reduce servicing costs.
Use this flexible brush to clean and prevent the build-up of dirt in your trumpet or cornet, particularly inside the leadpipe. When washing your instrument, take particular care when cleaning valve and tuning slides. Don't attempt to feed the brush all the way through; work from both ends.
Manufacturer’s website: championbrasswind.com
For reference, a maintenance schedule recommended by the Rosehill workshop is included alongside the product image(s).