Thomann Round Cord Ø=6mm x L=100mm

The school I teach has a huge instrumental program, which requires the constant service of 24 French horns. One of the biggest problems is losing small parts like that of the valve stop plate screw and the rubber stop. I used to buy ready to use replacement but this product drives the money lot further.

Only drawback is that you have to carefully cut the portion off using a razor blade. A pair of scissors won't work as the cut will be irregular, which results in the cord popping out from the socket.

This product also fits into the valve stop plate sockets of my Bach 42GOB trombone.