3-piece obi clasp set

Set of 3 Obi Clips

Natural Stone Obi Clip
Stone type unknown

I believe it's agate.
2-color Obi Clip

Ceramic Obi Clip
Marked as Kutani, but details are unknown

Purchased at an antique market, but I don't have many opportunities to use them, so I hope someone who likes them will use them.
There are minor scratches and scuffs.
Please purchase if you understand that these are old items.
Not sold separately

Vintage
Kimono