Simple & Efficient: This siding installation tool streamlines the entire process, making it simpler and more effective. It helps you level and space your siding accurately as you work up the wall, eliminating the need for complex layout calculations. This tool securely holds, supports, and clamps cement-board siding during installation. Applicable Size: Compatible with 5/16 inch cement siding. Adjustable in 1/4 inch increments for 4 inch to 8 inch siding reveals. Color: Red Material: Plastic Important: Do not over-tighten the handle, as this may cause the tool to pull away from the siding. The actual product may have slight color variations, which do not affect functionality. Package Contents: 2 x Siding gauge Note: Light reflection and different display settings may cause slight color differences between the item in the picture and the actual product. Measurement may vary by +/- 1-3 cm.