# Vandoren Black Diamond BD4 B-flat Mouthpiece

The Vandoren Black Diamond BD4 is a rubber mouthpiece listed for B-flat instruments. Its model identity and basic physical details are supplied, but there is no performance description to guide buyers comparing sound or playing feel.

- [Original product page](https://bargainpostbox.co.uk/product/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [View offer](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: VANDOREN
- Model: Black Diamond BD4
- Category: Books, Music & Hobbies > Musical Instruments
- Price: 90.24 GBP
- Previous price: 113.71 GBP
- Discount: 21%
- Price checked: 2026-11-12T19:16:57.109Z
- Rating: 4.5 / 5
- Reviews: 54

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Listed as a B-flat mouthpiece made from rubber.
- The listing identifies the model as Black Diamond BD4 and states a polished black finish.
- One mouthpiece is listed as the included component.

## Pros

- The listing specifies a B-flat key and rubber material, giving buyers basic compatibility and construction details.
- Dimensions and weight are provided for reference when comparing or storing mouthpieces.

## Specifications

### Identity and compatibility
- Brand: VANDOREN
- Model: Black Diamond BD4
- Instrument key: B Flat
- Finish: Polished
- Colour: Black
### Materials and dimensions
- Material listed: Rubber
- Dimensions listed: 12.7 x 5.1 x 5.1 centimetres
- Weight listed: 0.05 Kilograms
### Origin and package details
- Country of origin: France
- Number of items: 1
- Included components: Mouthpiece

## Before you buy

- The listing does not specify tip opening, facing length, recommended reed strength or playing characteristics, so it offers limited guidance for choosing by response or tone.

## In the box

- Mouthpiece (Included)

## A good fit for

- Players seeking the Vandoren Black Diamond BD4 listed for B-flat instruments.
- Buyers who can confirm that the model suits their instrument and playing preferences.

## Less suited to

- Buyers who need specified tip-opening or facing measurements to compare mouthpiece response before purchase.

## Customer feedback

Aggregate ratings lean positive, with most ratings in the five-star category, while a smaller share are three-star or one-star. Without written feedback, these figures do not explain what customers liked or disliked, so they cannot establish sound, comfort or compatibility in practice.

## Frequently asked questions

### Which instrument key is listed for the BD4?
The listing specifies B Flat. Confirm that this is appropriate for your instrument before buying.
### What material is the mouthpiece listed as?
The listing identifies the material as Rubber.
### What comes in the package?
The listed included component is one mouthpiece. No other package contents are specified.
### Are dimensions and weight provided?
Yes. The listing gives dimensions of 12.7 x 5.1 x 5.1 centimetres and a weight of 0.05 Kilograms.

## Alternative options

- [Clarinet In B Flat Mouthpiece Clarinet Head Bakelite Mouthpiece Clarinet Mouth With Ligature And Cap Clarinet Mouthpiece Bakelite Clarinet Mouthpiece For Clarinet Nice processing](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [OriGlam Clarinet Mouthpiece Kit With Ligature, Plastic Cap, Bb Reed 2.5 Strength and Cushions for Musical Instruments](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [TOYANDONA Metal Clarinet Mouthpiece Cover Compatible with Clarinet and Alto Saxophone, Silver Protective Cap to Safeguard Bflat Spare Mouthpiece, Sturdy Metal Part for Musical Instrument](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [Clarinet Headpiece Set for Clarinet Musical Instrument \| Plastic and Alloy Build, Includes Cleaning Brush, Easy to Carry and Store](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [TOYANDONA Clarinet Headpiece Accessories Professional Clarinet Supplies Kit Cleaning Brush Cushion for Beginners Intermediate Players](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [TOYANDONA Clarinet Mouthpiece for Clarinet Instrument Accessories for Airflow Mouthpiece Cloth](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [Clarinet Mouthpiece for Bb Clarinet, Plastic Wind \| Instrument Accessory with 15mm Bore, Suitable for Beginners and Professionals, Easy to Install, Size 90x25mm](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [Boao 32 Pieces Saxophone Mouthpiece Cushion 0.8 mm Alto Tenor Saxophone and Clarinet Mouthpiece Pads Patches Accessories for Beginners Musicians, Black](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [Teron Clarinet Head Cork Headjoint 5RV Bb,For Bb Clarinet,2.8 X 9 X 2.2cm](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [Plastic Clarinet Mouthpiece Cap,Alto Clarinet Mouthpiece Cover Protector Clarinet Accessories for Bb Clarinet](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [Stagg WIS-A45 Foldable Stand for Flute or Clarinet \| ABS support with metal folding legs, sturdy folding stand for flute or clarinet](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)
- [2Pcs Saxophone Mouthpiece Cap, Clarinet Mouthpiece Protective Rubber Cap Sax Accessories \(Black\) Wind Instrument Accessories](https://bargainpostbox.co.uk/visit/vandoren-black-diamond-bd4-b-flat-mouthpiece)

## Images

![Vandoren Black Diamond BD4 B-flat Mouthpiece — 1](https://bargainpostbox.co.uk/i/1UnLXUDj46vASpaWb6mbbpjlJeNsHGAaHoxohoG5Xoq_qfYoBb-yjonWxFXK3txn1ZWWSrcncJD1TeO8Ua0gKVK6VKiYAedrcPsMSYtEBCZGMFjmye4oOYq-.jpg)

![Vandoren Black Diamond BD4 B-flat Mouthpiece — 2](https://bargainpostbox.co.uk/i/58-Ofwjz9Y_evKwMtCt7mWFTWfGyd1_deduXRBLqsvp2bvutnxBGODycisKUqcuPXawBTLaMcJzvnA6KT8jxJfrzzCshYMeDZroaafPobECCCe7sTns8gPv-.jpg)