Do they fit Eb alto sax mouthpieces? What's the benefit to these?

Yes, they fit alto sax mouthpieces. The benefits to these are they both cushion teeth when playing as well as protect the mouthpiece from damage from the teeth, thus prolonging its useful life.

What is the thickness? (.4 or .8 mm etc?)

The black mouthpiece patch is 0.8mm thick and the clear mouthpiece patch is 0.35mm thick

How often should they be changed?

When the patches are worn through, then change them. Depends on your usage.

do these fit Vandoren metal mouth pieces

I have not used them on the Vandoren metal mouth piece but I suspect that it WILL fit just fine. It's slightly small on the hard rubber mouthpieces, and metal mouthpieces are usually narrower than the hard rubber, so it will probably work. They stick beautifully and it makes a huge difference in playing comfort.

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D’Addario Reserve Mouthpiece Patches, [Black] 5-Pack

D’Addario Reserve Mouthpiece Patches, [Black] 5-Pack

Product ID: 223070772

Details

Brand
D'Addario
Colour
Black
Instrument Key
C
Material
Kunststoff
Style
Modern

🎷Fits clarinet & saxophone mouthpieces

🖤Black, 0.80mm thick for optimal comfort

🛡️Protects mouthpiece from wear

Description

🎶 Play protected, play perfected — your mouthpiece’s new best friend!

ENHANCED PLAYING COMFORT - Soft cushioning reduces teeth fatigue and stops sliding for flawless embouchure control.
PROFESSIONAL TONE SUPPORT - Promotes correct embouchure development and tone production, ideal for all skill levels.
EASY APPLICATION REMOVAL - Adheres firmly yet removes cleanly without residue—perfect for quick swaps or replacements.
PRECISION FIT FOR WOODWINDS - Specifically designed for clarinet and saxophone mouthpieces, ensuring a secure, no-slip grip.
ULTIMATE MOUTHPIECE PROTECTION - Shield your investment with durable, residue-free patches that prevent wear and tear.

D’Addario Reserve Mouthpiece Patches (Black, 5-Pack) offer a sleek, 0.80mm thick cushioning solution designed to protect clarinet and saxophone mouthpieces from wear while enhancing player comfort. These patches prevent teeth from sliding, support proper embouchure, and remove cleanly without residue, making them a must-have for musicians seeking durability and professional tone control.

Specifications

ASIN	B00FLXNKJE
Best Sellers Rank	#23,324 in Musical Instruments ( See Top 100 in Musical Instruments ) #205 in Practice Aids
Brand Name	D'Addario
Colour	Black
Customer Reviews	4.7 4.7 out of 5 stars (2,909)
Finish Type	Painted
Global Trade Identification Number	00046716580894
Importer Contact Information	Gretex Audiotech LLP
Included Components	Mouthpiece
Instrument Key	C
Item Dimensions	19.1 x 5.1 x 0.3 Centimeters
Item Highlight	Reserve mouthpiece patches protect mouthpieces, improve comfort, reduce wear and support secure clarinet or saxophone play.
Item Type Name	Mouthpieces
Item Weight	39 g
Manufacturer	D'Addario &Co. Inc, D'addario & Co.
Manufacturer Contact Information	D'addario & Co.
Manufacturer Part Number	RMP01B
Material Type	Kunststoff
Model Name	Reserve Bissgummi
Model Number	RMP01B
Number Of Items	5
Number of Packs	5
Packer Contact Information	Dexter Ventures Pvt. Ltd
Style	Modern
UPC	046716580894
Warranty Description	Only manufacturer defective

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TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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