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Greg Black 4GS Medium Excellent Condition Greg Black
Product Details
GregBlack (Greg Black)
This is a listing for a 4GS Medium trombone mouthpiece.
It features a rim diameter of 26.1mm, known for its focused sound and good responsiveness despite its weight. The GS-style cup allows for coverage of the upper register.
- Large shank
- Used for a few hours
- Condition is nearly unused
- No noticeable scratches or dents
- Very clean inside and out
- Includes original box
Selling due to equipment consolidation.
The condition is good as shown in the photos, but please understand that this is a pre-owned item before purchasing.
This item is also listed on other flea market sites, so if it sells there, this listing will be removed.
Will be carefully packed and shipped.
#GregBlack
#GregBlack
#Trombone
#Mouthpiece
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.




