Wide cutting range: This guide supports 0–65 cm cuts, adjustable and easy to set, giving you precise control for long straight cuts with a circular saw. Durable aluminum alloy: Made from wearresistant aluminum alloy for good hardness and longlasting durability in workshop use. Accurate scale: Clear markings help you align the blade and distance quickly, reducing guesswork and improving cut accuracy. Smooth operation: The guide rail backing is designed for smooth, snag sliding, improving cut quality and work efficiency. Compatibility and portability: Designed to fit most standard circular saws and common guide rails; lightweight for easy transport and setup. Use scenarios: 1) Crosscut shelves, boards, and panels in a home workshop. 2) Produce repeatable, exact cuts for cabinet backs, drawer fronts, and trim. 3) Create precise frames, picture frames, or window casings with reliable alignment.