Ring set of all sizes 15 to 20 3D printable model. Comfort fit. Openwork flowers. Sizes 15, 16, 17, 18, 19, 20. Average thickness - 1.1 mm. For size 18mm weight:Width - 6 mm.Volume - 0.21 cm3. white gold 18kt (750) - 3.2 gr, yellow gold 18kt (750) - 3.25 gr, Sterling silver (925) - 2.18 gr. May be as wedding rings. Looks great both in yellow and white gold.Modern design solution, eco-friendly and non-standard.