Chunky metal alloy D rings. It's strong and sturdy iniridescent rainbow finish. There are perfect for bagmakers looking for the professional finish for their bags.

Internal measurement: 14mm / 1/2", 20mm / 3/4", 25mm / 1" or 38mm / 1.5"
Metal Thickness: 4.8mm / 3/16" or 3.8mm (see photo)
Colour Finish: Iridescent Rainbow
Material: Metal Alloy