It is made of material, which is durable and safe.This miniature linear actuator is using for industrial, agricultural machinery, construction, clean sweeping vehicles, vessels, cargo and many other applications.It can be replaced by hydraumatic, pneumatic products ideal for saving energy consumption.Item Name: Linear ActuatorMaterial: AlloyPlug Ordinary Two-wire Plug (can be used directly with power supply 12V)Rated Speed: 4000rpmExtension Distance Per Second: 5.7mm/sMaximum Load: 1500NFeatures: Soft, Warm, BreathableStroke Length: 50mm/1.97",100mm/3.94", 150mm/5.91", 200mm/7.87", 200mm/7.87", 250mm/9.84", 300mm/11.81", 350mm/13.78" (Approx.)Notes:Due to the light and screen setting difference, the itemand 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Linear Actuator2 x Brackets2 x Screws Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin