Material: these D shaped shackles are made of zinc alloy, they are strong and not easy to break, also they are not easy to deform or get rust,
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Measurement: 1x1 (25mm x 25mm), 1/2 cross bar, see next picture for dimension. Approximate thickness of metal is 4 mm Quantity : 4 pieces D-Rings looking horseshoe shape in Silver and Gold, with a 1/2 crossbar that can be used just like a traditional D-Ring or unscrewed, to allow for strap/hardware changes or repairs.
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