HIGH QUALITY MATERIALS. Our T-shaped length measuring device is made of aluminum alloy, which is lightweight. Because aluminum products have a characteristic: when metallic aluminum is exposed to air, it reacts directly with the oxygen in the air to form a thin and dense aluminum oxide film. Aluminum products are therefore more durable SCOPE. This product is suitable for carpenter and decorator work, with this tool, you can measure or fix drywall and wood panel firmly, and the miter limit can help limit the length of the trunking. Our miter track stop is suitable for woodworking and fits perfectly with a standard 30mm T-track. EASY TO USE. We will give you operating instructions in the package, you can see the detailed instructions in the manual PRODUCT PARAMETERS: Product net weight is 97g, suitable for 30mm T-shaped track