How does the jigsaw interlock between rubber tiles work?

Each edge of a rubber tile has alternating projecting teeth and matching recesses, forming a jigsaw outline. Depending on the range, the teeth have a dovetail form or are rounded. In both forms, each tooth has a head wider than its neck and extends through the full thickness of the tile.

During installation, each tile is pressed vertically down from above into the jigsaw interlock of adjacent tiles already laid. As each tooth head is wider than its neck, the joined tiles cannot be pulled apart in the plane of the surface. The connection is released only by pulling a tile vertically upwards. The interlocking teeth therefore keep the laid tiles securely joined through their full thickness.

If all four sides have the same interlocking teeth, the rubber tiles can be joined using any side. Otherwise, the laying direction is fixed. Adhesive and perimeter edging are generally not required.