Magnet None Mounting B (Standard) Tube Material Aluminum Tube 125~200, Steel Tube 250~300 Bore Size 140mm Thread Type Rc Stroke 100mm Option w/o Rod Boot, Cushion: Both Sides 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)