18pcs Camera Lens Filter Ring Adapter for Canon Nikon Sony Features:● The ring adapter easily screws onto the front of any lens, and converts the thread size of your lens to the thread size of any other accessory (such as filters, hoods, flashes and lens converters)● Made of high quality anodized black aluminum (metal)● Extremely solid and lightweight. Specifically designed for your camera for a tight and secure fit. No wobbling or cross-threading.● The first number is always the lens thread size, the second number is the filter size of the accessory. If the first number is bigger, it's a step-down ring. If the first number is smaller, it's a step-up ring● A must have accessory to unlock the full potential of your camera!● Accessory only.Camera and filter UV not included.Package Includes:37mm-49mm Step-up ring x 149mm-52mm Step-up ring x 152mm-55mm Step-up ring x 155mm-58mm Step-up ring x 158MM-62mm Step-up ring x 162mm-67mm Step-up ring x 167mm-72mm Step-up ring x 172mm-77mm Step-up ring x 177mm-82mm Step-up ring x 149mm-37mm Step-down ring x 152mm-49mm Step-down ring x 155mm-52mm Step-down ring x 158mm-55mm Step-down ring x 162mm-58mm Step-down ring x 167mm-62mm Step-down ring x 172mm-67mm Step-down ring x 177mm-72mm Step-down ring x 182mm-77mm Step-down ring x 1 Applicable camera brand: Nikon, Sony, Canon Package weight: 0.181 kgPackage size (L x W x H): 10.5 x 6.5 x 10.5 cm / 4.13 x 2.55 x 4.13 inches Package contents: 18 x Camera Lens Filter Step Up Down Ring Adapter for Canon Nikon Sony