Argentium Silver U Hook Earwires have been balled (or available as non-balled), filed, hardened and tumbled for several hours to a smooth and shinny finish.

Measuring 24mm long x 12mm wide with a balled end. Wire thickness is 0.8mm/20 gauge/0.032". *Designed for wide polymer clay pieces, or wide charms - just thread on from the hook.
 
.940 Argentium silver is Nickel-free. Argentium produces less fire scale, it melts to a smoother ball and is also more tarnish resistant than Sterling Silver with a superior brightness.

Being a handmade item, you will often find irregular markings, or minor differences in the pieces.