Round Corner 4 x 4 Full Brick (2577)

Create broad curves and rounded corners with the LEGO® Round Corner 4 x 4 Full Brick (2577). This full-height quarter-circle element combines a curved outer edge with a straight two-sided corner, making it useful for structures that need a smooth transition without relying on several smaller curved pieces.

The 4 x 4 footprint provides a substantial building surface for circular walls, towers, vehicle sections and architectural features. Its standard studded top allows additional bricks, plates and decorative elements to be added directly above.

Key Building Uses

• Rounded architecture. Construct curved façades, towers, balconies and building corners.
• Circular structures. Combine several elements to form larger rounded layouts and enclosed shapes.
• Vehicle bodywork. Add broad curves to hulls, cabins and custom vehicle designs.
• Display models. Create smooth transitions and substantial curved sections in decorative builds.

Explore more LEGO® round bricks or browse the wider LEGO® brick collection for additional structural elements.