49mm to 82mm Step-up Ring Adapter Kit easily screws onto the front of the lens diameter (49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm), and converts the thread size of your lens to the thread size of any other 52mm/ 55mm/ 58mm/ 62mm/ 67mm/ 72mm/ 77mm/ 82mm accessory such as filters, hoods, ring flashes and lens converters * Made of high quality anodized black aluminum metal * Specifically designed for your lens for a tight and secure fit. No wobbling or cross-threading * Kindly Note: Items you received may be a little different from the pictures, without of "mm" behind the diameter. It"s up to the factory