Natural white broderie anglaise trim, about 47mm wide in total, with the embroidered part measuring about 30mm. Base fabric is like a very lightweight muslin, approximately 45-50gsm. Trim has a wrong and right side (see photo), but looks quite neat from either side.
These cotton trims are used to add detail to clothing or for edging cushions and accessories, etc. There are some loose threads and/or extra fabric which you may want to tidy up yourself with small scissors.