Features:1. Made of good quality aluminum alloy, the lens is solid, durable and rustless.2. This 2X professional telephoto conversion lens has high definition optical resolution. Put this lens on your camera and it instantly doubles your zoom.3. You just screw this lens on front of existing lens or adapter. Easy to install and remove.4. Waterproof, scratch-proof, oil-proof. Exquisite design, lightweight and portable.5. It fits any camera with 37mm lens thread. 46 mm front thread for filter installation.Specifications:Material: Aluminium Alloy + Optical GlassColor: BlackInterface Size: 37 mmFront Thread Diameter: 46 mmMultiplier: 2XCompatible models: Mounts on any lens with 37mm diameter 18-55 Focal LengthSize: Approx. 5*5*3.6 cm/ 1.97*1.97*1.42 inchWeight: Approx. 199 gPacking List:1 * Lens1 * Storage Bag for Lens1 * Lens Cleaning ClothNote:1. This product should be used with a 37mm diameter conventional camera lens, and should not be used alone.2. This product has most obvious effect used with medium and short lenses with focal length of 18-55.