Brand: FHTDLN [2024 Latest Model] Jet Washer Replacement Nozzles - 4 unused nozzles (2 were used) 350ML Tank, Interdental Care, Oral Care, IPX7 Waterproof, USB Rechargeable, Cordless, Beginner-Friendly, Reusable, Travel & Home Use (Black) 4-Stage Adjustment Purchased on Amazon in December 2024 for 5980 yen. Works without any issues. This product wasn't suitable for me, so I used it a few times and then left it unused. When using the High mode, the water pressure is very strong, and you'll get soaked if you're wearing clothes (￣▽￣;) I used two of the nozzles (two different types), so I'm selling the remaining unused ones. The used nozzles shown in the photos have been discarded. There is no original box or instruction manual. Thank you.