Porsche Logo. 19.6 size ring with Porsche logo, porsche jewelry ,+ stl files of ring parts, ring model allredy can be printed by 3d printer, perfect working model, men's enamel ring 19.6 mm sizealso I can put any size You need ~16.6 gr 14K gold (585)~20.5 gr 18K gold (750)~ 15 gr silver 925