This leadholder represents an interesting extension of the venerable Turquoise pencil line.
Made in Japan (the pencils are made in the U.S.), it is a “Sanford Turquoise” rather than a “Prismacolor Turquoise”.
The body colour seemed correct in my memory, but next to a pencil, it is much closer to blue than turquoise.
It is a basic spring clutch mechanism leadholder, with a metal clutch and grip, and a plastic body. The clutch does recede into the pencil when no lead is being clutched. There is also a metal clip.
It does have a clean look, and is perfectly usable.