leg band; ring; anklet
Refers to a band or ring worn around the leg, such as a bird's identification ring, a hospital patient's ID band, or a decorative anklet.
A number was engraved on the bird's leg band.
The hospital patient's name is written on the leg band.
Compound of 足 (ashi, 'foot, leg') and 輪 (wa, 'ring, circle'). The reading あしわ is a straightforward combination of the two elements.