1. As a surprise prism gift for photography accessories, it can create cool refraction effects in photos. Using this glass prism, you can take some interesting effects. I hope to use more unexpected skills in scenes such as characters, landscapes, and night scenes. 2. It is made of high-quality solid K10 optical glass material with high transparency. Made of high-quality optical glass and hardware, it has strong wear resistance and long service life. 3. The diameter is 77 mm, which is only suitable for 77 mm lens. This is a great photography tool that can make your photos unique without using any effects or Photoshop. 4. Our products will undergo a comprehensive inspection before shipment to ensure that the products are not defective or damaged in the hands of each consumer. 5. It can be connected with an adapter ring to convert it into lenses of other diameters. This is also a new way to observe the world, you can see novel scenery, night scenes, etc.