This Hanimex Auto 2x Converter comes with its original leather case and one lens. It is a teleconverter with a maximum aperture of f/2 and a Pentax mount. The focus type is auto and the focal length is fixed/prime. This converter was made in Japan and has a height of 3" and a width of 2 1/4". It is a great addition to any camera and can enhance the quality of your photos.  It would ship USPS ground insured.