This laser attachment is an add-on accessory for the Kapro 314 Set & Match System (sold separately). This is a versatile, multi-purpose ruler that features add-on accessories (sold separately) to help you build your perfect DIY tool. With the laser you can mark your line at a range of 20 feet (6m). Plus, you can adjust the laser line without the ruler by simply removing it from the base and placing it wherever you want. The Kapro 314 helps to tackle all of your DIY and home improvement jobs from hanging shelves and aligning cabinets, to arranging wall paper and leveling mirrors. Plus, you can use this tool for carpentry, drywall, and interior design projects! This laser features a magnetic base, which you can place into the slide and lock center of your Kapro 314 Set and Match. Once locked into place, the laser easily glides up and down the ruler. At Kapro, we reimagine precision tools and accessories for professional craftsmen to weekend warriors while setting high standards by driving innovation in our designs. Material: Aluminum.