A surprise prism gift as photography accessory to create cool refraction in photos. | Single Finger Handle, easily hold in front of the lens to manipulate the effect | Made of quality optical glass and hardware, wear resistance and can provides long service time. | Glass Part Diameter:79mm, Large Enough For Any Lens | This is a cool tool for photography, Creates Multiple Refractions FX, make your photos unique without having to use any effects or Photoshop.