▪ Clean Series: Without Clean Series▪ Magnet: D (Built-in Magnet)▪ Mounting Direction: S (Axial Mounting)▪ Bore Size: 16▪ Stroke: 20mm▪ Action: D (Double Acting)▪ Rod End Thread: M (Rod End Male Thread)▪ Auto Switch: No Switch▪ Lead Wire or Prewired Connector: 0.5m (Or None in the Case of No Switch)▪ Number: 2 pcs. (Or None in the Case of No Switch)