This 5 piece model train consists of five 4" x 4" steel sheets from which individual parts can be removed to assemble a museum quality model using tabs and holes. This Freight Train set includes 5 train cars including the Diesel Locomotive, Gondola Car, Box Car, Hopper Car and Off Center Caboose. Details: Includes 5 metal model sheets and instructions 17" connected model length 5 train cars Difficulty level: Challenging No glue or solder needed For ages 14 and up Size Information: Engine : 4.17" x 0.7" x 1.02" Coal Car: 3.46" x 0.66" x 0.87" Box Car: 3.78" x 0.66" x 1.06" Flat Car: 3.26" x 0.66" x 0.63" Caboose: 3" x 0.66" x 1.06"