rate: 100Nice items..
Bought 1 18cm and 20cm bracelet. Good condition. Size wise: for wrist 17cm, 18cm bracelet is too fitting/tight, cannot move at all (zero allowance with abit squeeze). I measured, internal space is 19cm for the 20cm bracelet. So internal space for 18cm bracelet would be around 17cm. Hope these measurements helps. Would recommend for wrists size 17 and above, forget about 18cm bracelet, get 20cm.Jan 17, 2019