Accidentally deleted the original set so he we go again:

A Basic Explanation:

This set contains:

1. A construction kit for those big walls you see in the back of the thumbnail
2. A bunch of complementary items such as fences and barriers

• Most items are available in the 5 basic rock color schemes. The wall kit also includes 10 different styles of trim that you can use on top of the wall or as vertical dividers.
• The wall and trim pieces are 8 units thick and on an 8x8 (quarter block) grid. They can be rotated upwards and will remain on that grid. Being 8 units thick they can be combined with other quarter block items, such as these black walkway/tunnel things.
• Some of the smaller items exist in 2 variants. One normal variant on a small grid to easily place them in regular intervals. And an autorotation variant that allows you to slap the item to whatever angled surface you like. The autorotation variants are indicated by the yellow circle in the item thumbnails (ingame).

Have fun building