【Unused】 Mouthpiece (Large x2, Small x1) & Nose Clip (x2) (Total 5 items) with Instruction Manual & Outer Box

Purchased new, but only the small size 1 piece and storage case from the set were used. The remaining items are completely unused, so I am listing them for sale.
All items listed are new, unused, and in their original inner packaging.

■ Set Contents (Total 5 items + accessories)
• Mouthpiece (Large size): 2 pieces *Inner packaging unopened
• Mouthpiece (Small size): 1 piece *Inner packaging unopened
• Nasal dilator (nasal clip): 2 pieces
• Instruction manual
• Outer box
*The blue storage case is not included. Only one small size mouthpiece is included.

■ Product Features
• Custom-fit type molded with hot water:
You can achieve a perfect fit according to your own teeth impressions.
• Wide range of uses:
Can be used for teeth grinding and snoring during sleep, as a whitening tray, or as a mouthguard for martial arts and other sports.
• Adjustable size:
You can also trim it with scissors to adjust it to your preferred size.

A small container or case from a 100-yen shop can easily substitute for the storage case. Therefore, I would like to offer these items at a lower price for those who want to try the main product.