Feature 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.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 Glass Color: Black Interface Size: 37 mm Front Thread Diameter: 46 mm Multiplier: 2X Compatible models: Mounts on any lens with 37mm diameter 18-55 Focal Length Size: Approx. 5*5*3.6 cm/ 1.97*1.97*1.42 inch Weight: Approx. 199 g Packing List: 1 * Lens 1 * Storage Bag for Lens 1 * Lens Cleaning Cloth Note: 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.