LEGO Double-Acting Pneumatic Piston Cylinder 48 mm Set 5108 | Brick Owl - LEGO Marketplace
Modified Pneumatic Cylinder - V2 1x5 - Small - Metal Shaft – Green Gecko Workshop
Modified Pneumatic Cylinder - Medium - Metal Shaft – Green Gecko Workshop
Amazon.com: LEGO Technic 4 pcs NEW YELLOW MINI PNEUMATIC PISTON CYLINDERS Air pressure Pump pack lot set switch hose small little robot robotics : Toys & Games