The B-G Racing String Line Wheel Alignment Tracking Kit provides the easiest and most accurate way to achieve four wheel alignment. Kit consists of front & rear multi-adjustable boss units manufactured from high-grade mild steel with a durable silver grey powder-coated finish, hooking feet manufactured from high-grade mild steel with a rubber coating, silver zinc plated various length tubes, string bars machined from aluminium with a bright silver anodised coating and plastic string line reels. The frames are fully adjustable to allow fitment to a wide range of cars, and simply attaches to the car using the hooking feet which are interchangeable to all of the tubes in the kit. The string bars have a number of pre-machined grooves for the strings to locate in, and a pair of extension bars making the B-G String Lines suitable to cars of different widths. Can be used in conjunction with HUB stands, Race Scales and Fabricated Square Trays to achieve the ultimate car set-up. A heavy duty carry bag is available separately (P/N: BGR200BAG), and is perfect to store and transport this kit with ease. Features: 3 different tube lengths & can be joined using the four tube connectors provided. 3 types of feet that fit easily to all 3 length tubes. One type is double sided to give additional options when attaching the frames to the car. 4 powder coated boss units that are fully adjustable to give options to suit various cars and applications. 4 aluminium stringing bars and two extension bars with an anodised finish. The stringing bars feature machined grooves that the string lines locate in to ensure accurate positioning. The provided string line reels make it simple to apply the string to the stringing bars and to store it when not in use. 12 months manufacture guarantee from the date of purchase *guarantee is invalid if the product is found to have been abused or tampered with in any way, or not used for the purpose for which it was intended. note: image is for illustration purposes and may differ on delivery