Vandoren V21 Bass Clarinet Reed, Strength 4 - Brand: Vandoren - Model: V21 - Type: Clarinet Reed - Application: For Clarinet I tested it for about 30 seconds. Purchased on 2025/12/22. I have a photo of the receipt from the music store. I will send it including the box. I can include the Vandoren sticker for the lottery for an additional 100 yen.