As a surprising prism gift for photography accessories, it can create cool refraction effects in photos. You can achieve some interesting effects with this glass prism. I hope to use more unexpected skills in scenes like characters, landscapes, and night scenes. It's made of high-quality solid optical K10 glass material with high transparency. Made of high-quality optical glass and hardware, it has strong wear resistance and a long lifespan. Our products undergo a comprehensive inspection before delivery to ensure that the products are not defective or damaged in the hands of any consumer. Diameter 77mm/82mm is optional, only suitable for 77mm/82mm lenses. This is a fantastic photography tool that can be used to make your photos unique without using any effects or Photoshop. It can be connected to an adapter ring to convert it to lenses with different diameters. This is also a new way to look at the world; you can see new landscapes, night scenes, etc.