Cross-brace and furniture-assembly kit

A cross-brace comprising:

• an elongate rod portion;
• and
• two claws,
• wherein the rod portion has two substantially opposite longitudinal ends,
• wherein the two claws
• are each arranged on one of the two longitudinal ends of the rod portion,
• comprise a base having a longitudinal axis a first grip-around portion extending from the base and having a free end, a second grip-around portion extending from the base and having a free end, and an arresting mechanism, and
• are designed to grip around a rod-form element, and
• wherein for each of the two claws,
• the second grip-around_portion can be moved relative to the first grip-around portion between an open position, in which the rod-form element can be accommodated by the claw, or can be removed from the claw, and a closed position, in which the claw can grip around the rod-form element,
• the first grip-around portion and the second grip-around portion are designed here such that they grip around the rod-form element in the closed position in such a manner that a gap remains between the free end of the first grip-around portion and the free end of the second grip-around portion, and
• the arresting mechanism is designed to keep the first grip-around portion and the second grip-around portion in the closed position such that in the closed position the claws cannot be opened without the use of a tool.