【Material】Made of premidium solid Optical Glass material, provide the for of clarity and transparency.Made of nice optical glass and hardware, wear resistance and can provides long service for time. 【Features】An excellent prism gift as photography accessory to create cool refraction in photos.With this glass prism, you can sh-oot some interesting effects. In the scenes of people, scenery, night scenes, 【Adapter】you can connect for w/ adapter to convert into lens in other diameter.Also a new way to observe the world, you can see a novel scenery, night scenes, and 【Boutique】Our glass filter will be fully inspected before shipment, ensuring that the glass filter in the hands of every consumer is not flawed. 【Advantage】77mm diameter only fit for 77mm lens.This is a cool tool for photography, make your photos unique without using any effects for