An extension for set number ten (10A) includes 165 stone blocks in the three standard colors; brick red, natural sand, and slate blue. The Anchor Design booklet contains 10 architectural plans including a castle, church with steeple tower, town gate, and a Greek chapel. Packaged in the traditional wooden box with a packing diagram. This expansion set allows you to build larger and more complex models and improves your building experience with Anchor Stones. Useful for creative free-form building as well as building from the standard templates. This set plus the combination for set #10 becomes the equivalent of set #12 and allows you to build all of set #12 models.