Updated 7 May 2026
| Brand | JK |
| Category | Wind Instruments > Brass Instrument Mouthpieces > Booster for Mouthpieces |
| Available at | 1 UK stores |
| 90-day avg | £31.65 |
JK
JK Adjusting Sleeves Tromb. S2
£31.60Fair Price
Cheapest at Thomann · 1 store
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PRICE HISTORY
Current
£30
Change
+6.6%
Avg
£29
Low
£26
High
£31
Volatility
3.7%
PRODUCT DESCRIPTION
- JK Adjusting Sleeves Trombone Exclusive S2
- for JK Exclusive-Models trombone mouthpiece
- the sound becomes stronger and more focused
- silver plated
- baritone shank