Magnet D (Built-in) Mounting B (Basic Style) Style A (Non-lube Air Cushion) Bore Size 32mm Thread Rc (M5 for Air Cushion 20 & 25 Bore) Seal Material R (NBR) Stroke 150 Auto Switch G5BA--Solid State, Water Resist., 2 Wire Lead Wire or Prewired Connector Z (5m) Number 2 pcs. (Or None in the Case of No Switch)