Updated 6 May 2026
| Brand | JK |
| Category | Wind Instruments > Brass Instrument Mouthpieces > Booster for Mouthpieces |
| Available at | 1 UK stores |
| 90-day avg | £32.60 |
JK
JK Adjusting Sleeves Tuba
£32.50Fair Price
Cheapest at Thomann · 1 store
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PRICE HISTORY
Current
£30
Change
+2.3%
Avg
£31
Low
£28
High
£34
Volatility
4.7%
PRODUCT DESCRIPTION
- JK Adjusting Sleeves Tuba
- Adjusting sleeve for tuba mouthpiece
- The sound becomes stronger and more centered
- Silver-plated