Updated 8 May 2026
| Brand | JK |
| Category | Wind Instruments > Brass Instrument Mouthpieces > Booster for Mouthpieces |
| Available at | 1 UK stores |
| 90-day avg | £31.40 |
JK
JK Adjusting Sleeves B-Tromb. Exc
£31.30Fair Price
Cheapest at Thomann · 1 store
Deep Intelligence Analysis
RSI · Bollinger Bands · Buy/Sell Signal · News
PRICE HISTORY
Current
£30
Change
+9.0%
Avg
£29
Low
£27
High
£31
Volatility
3.9%
PRODUCT DESCRIPTION
- JK Adjusting Sleeves B-tromb. Exc
- Adjusting Sleeve for JK Exclusive bass trombone mouthpiece
- The sound becomes stronger and more centered
- Silver-plated