Notions - Little House - Japanese Sashiko Brass Plate Palm Thimble - is currently on backorder. You may still purchase now though and we'll ship as soon as more become available.
From Little House of Japan, an adjustable metal ring thimble with a protective plate to use for basting, long running stitches and sashiko.
The thimble is worn at the base of the middle finger with the plate resting against the palm.