12mm (1/2"), 16mm (5/8"), 20mm (3/4"), 25mm (1"), 32mm (1.1/4") or 38mm (1.1/2"). Choose From Sizes: 12mm (1/2"), 16mm (5/8"), 20mm (3/4"), 25mm (1"), 32mm (1.1/4") or 38mm (1.1/2"). Solid Brass Rectangle Keepers.
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