High Playability: The building block set is made up of 825 pieces bricks include detailed step-by-step color instructions Great details with assorted sizes and color pieces Two Game Modes: The two modes are independent of each other. The first is to build a city police mobile command center truck which is more than 11 inches in length more than 2 inches in width and more than 3 inches in height (Figure 5). The second project built eight sets of police equipment including police helicopters jeep vehicles police boats off-road police vehicles armored vehicles mobile police stations etc. (Figure 6). Manufacturered by dOvOb. A Great Gift: It will be a very interesting game experience. The finished product is also a great collection.Wonderful recreation activity Perfect gift for both adults and ages 9 years up children Note: If you find some missing pieces in your item please contact the seller to show what pieces are missing and the seller will ship the missing pieces to you High Quality of Building Blocks: This city police cars model building blocks set made of original ABS material durable plastic kits