▪ Built-in Magnet: D (With Magnet) ▪ Mounting Style: B (Standard) ▪ Bore Size: 20mm ▪ Stroke: 30 ▪ 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]