Item Type: Adapter Ring for Photography Light Material: Aluminum Alloy Product Color: Black Product Weight: Approx. 254g / 9.0oz Applicable Models: Suitable for always on light, flash light with diameter less than 98mm / 3.9in Package List 1 x Adapter Ring 1Aluminum Alloy: Using high quality aluminum alloy with painted surface, the adapter ring is anti corrosion, anti oxidation, strong and durable, and has long service life. 2Easy to Install and Remove: The alloy adapter ring is easy to install and disassemble, very convenient to use. 3Small and Portable: Small in size and light in weight, the speedring adapter ring is easy to carry around. 4High Performance: With fine workmanship, excellent performance and strong practicability, the speedring adapter converter has high reliability. 5Applicable Models: The adapter ring is versatile, and suitable for always on light, flash light and softboxes with diameter less than 98mm / 3.9in.