https://www.rosehillinstruments.co.uk/p/5500/cornettrumpet-mutes/ph/ph-trumpet-plunger-mute P&H trumpet plunger mute £ £16.50 5500
https://www.rosehillinstruments.co.uk/p/5502/trombone-mutes/ph/ph-trombone-plunger-mute P&H trombone plunger mute £ £22.00 5502