• The kit includes 10 kinds of pneumatic accessories, a total of 19pcs. There are two 1*12 V2 cylinders, two 1*11 V2 cylinder air pumps, two 1*5 cylinder V2 pneumatic push rods, two 1*6 air pumps, 2 pneumatic switches, 2 pneumatic spring air pumps, 2 7L atmospheric pressure pistons, 2 square bottom air pumps, one 2 meters long pneumatic hose, and 2 push rods. （Note: The color of the tube is random）
• Usage: Replace or upgrade the same parts of the small-particle engineering building blocks. The MOC small particle engineering construction building blocks kit is used to realize the hydraulic effect at night, and to drive the turning, grasping, lifting and other functions of the models of cranes, trucks, various construction engineering vehicles, military trucks, aircraft, robots and so on
• Manufactured by high precision mould. The size is compatible with other branded building block. It features good sealing, no air leakage. The quality of parts comparable to the famous Danish building blocks
• An excellent gift for MOC building blocks fans
• Age:16