Description: Product List: 1 Lens Mount Adapter Circle.Material: M39-L(M) Lens Mount Adapter Made of metal, this adapter circle ensures durability and long lasting performance.Specifications: The adapter circle fits lenses with a focal length range of 28-90MM.Product Dimensions: With dimensions of 5cmx5cmx0.8 cm, this compact and lightweight Lens Mount Adapter Circle is easy to carry and store.Easy to use: Cameras Lens Adapter is simple in design and can be installed and used directly without complicated steps. Specification: Material: Metal Size Chart: 5cmx5cmx0.8cm/1.97inchx1.97inchx0.31inch Package Includes: 1Lens Mount Adapter Circle Note: Please allow slightly errors 1-2cm differences due to manual measurement.