Dual Cylinder Power Assist Helm Unit 

(Desktop: Hold Left Mouse and drag to rotate, Hold Right Mouse and drag to pan, use mousewheel to zoom in and out. Mobile: Drag finger to rotate, Drag two fingers to pan and pinch to zoom in and out.) Note: 3D Models are large files and make take a while to load especially on slow connections. 3D Model display requires a modern smartphone or desktop computer. Older devices may have poor performance.