Note before buying: Most of the laser heads need to be soldered away from the protective solder joints before installation before they can be used normally! This product does not provide installation instructions!!! In order to avoid unnecessary trouble, before buying our products, please confirm that the model (compare pictures) is not the product you need, to determine whether you have enough ability to replace your needs (laser head) and other accessories! Otherwise: you must find a professional to replace and test after purchasing our products! To avoid damage to the product itself and your machine. Features: 1. For Sanyo SF-101/101N thick machine. 2. Professional chipset provides excellent performance in the system. 3. Made of high quality materials to avoid corrosion, resistant to wear and tear and durable. 4. Great replacement for old or damaged lenses for consistent performance. Specifications: Item Name: Laser Head Model: For Sanyo SF-101/101N Material: Plastic + Metal Type: VCD Optical Head Package include: 1 X Laser Lens Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!