Trebizond is a 3 ply filament silk.  It is lustrous and shimmery and designed to cover tent stitch on 18 mesh canvas. Size is between a #3 and #5 Pearl cotton and is easy to use for a beginning needlepointer.

Plies can be separated and recombined to produce a "watery" effect in satin stitches.
Can be used as is on 13 or 18 mesh canvas.
Permanently marked spool means you always know what color you have.