S level 50*70cm [can be covered or paved, suitable for all seasons]; S-level 100*150cm [can be covered or paved, suitable for all seasons]; S-level 120*200cm [can be covered or paved, suitable for all seasons]; S-level 150*200cm [can be covered or paved, suitable for all seasons]; S-level 180*200cm [can be covered or paved, suitable for all seasons]; S-level 200*230cm [can be covered or paved, suitable for all seasons]
