These rings are made from a brass plated steel and are a solid welded circle.
Wire thickness is typically 3mm (.11" or 7/64 - 1/8 inch) but can vary slightly by up to 1/2mm (.02" or about 1/64th inch).
Ring size is determined by the measurement of the ring diameter, (outer edge to outer edge, across the middle).
Please Note: Postage for these items can differ due to the actual size of the ring. If you are just ordering rings, please place your order and I will contact you by email with any additional postage charges.