They are old cement blocks having Y-shape and interlocking each other. The texture is commonly used for pavement of public area.

This cement block has 3 fan-shaped structures allowing them to interlock together. The blocks are arranged in brick bond format with alternating colours of grey and yellow.

It can be used to materialise footpaths or walkways.

They are red concrete blocks of Y-shape interlocking each other. The texture is usually used to pave pedestrian pathway.