The Vauban style of fortification was very complex and had many different geometric configurations. The walls could meet and many different angles. This kit provides you with the corner pieces you will need to build your fortress. The kit has four each of 30-degree, 45-degree, 60-degree and 90-degree angles with both "Inside" and "Outside" angles for a total of 32 pieces. The kit comes in 10/12mm scale (which has 8 extra corner pieces for a total of 40), 15mm scale, 20mm scale and 25/28mm scale. The kits are also available in either brick or stone finishes.