Silver motorcycle Timing strap Cuff.
Cast from the strap itself, the cuff has a rough rugged finish.
Strong and adjustable.
Cuff Measurement :
Width : about 6 mm
Thickness : about 2 mm
Weight : approx. 18 gr.
Length, end to end, without the gap : about 17 cm
Last pic - on the model - same same but made of Brass : 
https://www.galbarash.com/product-page/timing-cuff-b
Cuff size:
This cuff is adjustable and will fit most hands but please measure your wrist and write me your wrist size when you order so I will adjust it for you.
Cuff(end to end, without the gap) should be about 1.5 - 2 cm less then your wrist, so, for 18.5 cm, I will make it 17 cm

Unisex.