Lego Technic - Pneumatic Vehicle by Nico71 - YouTube
Pictorial Review: 8868 Air Tech Claw Rig/Materials Handler - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
Mould King 19014 Technical Car Toys moc-89879 Pneumatic Concrete Pump Truck Building Block - Walmart.com
LEGO 42157 Technic John Deere 948L-II Construction Vehicle Set with Pneumatic Functions and 4 Drive Wheels, Construction Vehicle Model Kit : Amazon.com.be: Toys