uxcell Double Guide Rods Dual Action Pneumatic Air Cylinder TN25x40 Product Name : Air Cylinder;Model : TN25x40;Action : Double Action Rod Type : Double Rod;Bore : 25mm;Stroke : 40mm Rod Diameter : 12mm;Connector Port Dia : 5 x 3.5mm/0.2" x 0.14" Total Size(Approx) : 12.3 x 7.3 x 3cm/ 4.8" x 2.9" x 1.2" (L*W*T);Material : Aluminum Alloy Weight : 628g;Package Content : 1 x Air Cylinder