18Pcs 3 Styles Rainbow Color Zinc Alloy Spring Gate Rings, O Rings, Rainbow ColorSize: O Rings: about 24x4mm, Hole: 16mm, 6pcs; O Rings: about 27.5x4mm, inner diameter: 19.5mm, 6pcs; O Rings: about 34.5x4.6mm, inner diameter: 25.5mm, 6pcs; Paper Cardboard Boxes: about 12x9x1.5cm, 1pc.