What is the name of the brick with a hole in the middle of the garden?

Straw brick Grass-planting bricks are generally used in parking spaces or small-area pavements. Its advantage is that it can not only bear the load, but also meet the parking function. At the same time, half of its own area is included in the green area. Bricks with holes in the middle of the garden can increase the green area of the garden. Grass-embedded brick is a regular polygon brick with a hole in the middle, which can be used to sow grass seeds. The hole in the middle of the grass brick is very large and very breathable. Brick cracks or brick holes are used as the space for long grass, and the roots of green grass grow under the embedded bricks, which protects the grass roots from damage, the ecological environment and the soil, and is more conducive to the growth of vegetation, thus beautifying the environment.