Edging for beds, lawns, or the like

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A wall structure (10) for retaining earth, the wall structure including a plurality of wall members (12), each wall member having an upper edge (28), a lower edge (26), and a respective first end edge (12a) and second end edge (12b) at either end of its length, each of the first end edge and second end edges having at least one knuckle formation (18a, 18b) adapted for engagement with a pin member (22); the at least one knuckle formation (18a) of the first end edge (12a) of a first wall member (12), and the at least one knuckle formation (18b) of the second end edge (12b) of a second wall member (12) receiving a pin member (22) to provide a hinged connection (32) between the first wall member and second wall member.