Adjustable stroke, Reed sensor, Acme screw, Self-locking, Water & dust resistant, Enhanced antirust quality, High performance & service life, High precision, Heavy duty bracket and static load capacity, Option Stroke length:2"/4" 6"/ 8"/10"/ 12" (inch) Voltage : 12 VDC Sensor type : No Sensor Drive screw : Acme Packaging spec.: 58x30x34(cm) Weight: 10pcs/box for car automation