Cylinders Elwink’s cylinder systems are engineered to deliver precision security and seamless integration across a wide range of door hardware applications. ELC-1 Cylinder Type: Double EuroKeys: 3Cylinders & Keys Type: Euro ProfileCylinder Material: BrassKey Material: Nickel SilverKey Thickness: 4mmSize: 60mm to 100mm ELC-2 Cylinder Type: Single EuroKeys: 3Cylinders & Keys Type: Euro ProfileCylinder Material: BrassKey Material: Nickel SilverKey Thickness: 4mmSize: 35mm to 45mm ELC-3 Cylinder Type: Double Euro with thumb turnKeys: 3Cylinders & Keys Type: Euro ProfileCylinder Material: BrassKey Material: Nickel SilverKey Thickness: 4mmSize: 60mm to 100mm