Pepperell Accessories Designer Ring 12 in. With 5 in. Inner Ring- Modern macrame is now easy for any skill level with welded geometric layers developed to add layers and texture to your design. Ring size is determined by the measurement of the ring diameter, from outer edge to outer edge. Silver tone steel rings are typically 3 mm wide but can vary slightly by up to .5 mm; rings are neatly welded shut. Contains: a 5 in. ring within a 12 in. ring, welded together at the top.