The Johnson Acculine Metric Aluminum Grade Rod is a perfect laser accessory for construction leveling jobs. This durable, oval shaped rod is constructed with aluminum and it has a protective anodized finish to prevent corrosion and weather damage. It is built to last, extends up to 4 meters and includes a snap on circular leveling vial and nylon carrying bag with shoulder strap for easy portability. It also contains 4 adjustable sections. With dual graduations in meters (front) and millimeters (back) and large, easy-to-read numbers, this aluminum rod produces accurate readings making it a great tool with any laser detector. A 3-year limited warranty is included.