Simple & Efficient: This siding installation tools streamlines the entire process, making it simpler and effective. You can level and space your siding perfectly as you work up the wall, eliminating the need for complex layout calculations. Consider this tool your trustworthy helper that effortlessly holds, supports, and clamps the cement-board siding. Applicable Size: Works with 5/16 inch thick fiber cement siding. Can be adjusted at 1/4 inch increments for 4 inch to 8 inch siding reveals. Colour:red Material:plastic Important: Don't over-tighten handle, over-tightening handle may cause tool to pull away from siding. The actual product may have slight color difference or difference, which will not affect the use Package Contents: 2 * Siding gauge