Iron Eyepins, Platinum Color. Size: about 2. 6cm long, 0. 7mm thick, about 5500pcs/500g, hole: about 2mm. Eyepins are a jewelry design staple. Once the eye pin is strung through the bead or pendant, its eye can be used to link it to other components of the jewelry and the excess wire peaking out. Caused by the property of material, pins may be bent but that won't impair their use. So buy this 1,000 g Platinum Color Iron Eyepins For $4.41 @PandaHall