Simple And Efficient: For use with 5/16-inch fiber cement siding. Adjustable in 1/4-inch increments for 4- to 8-inch siding reveals with hands-free nailing. This feature ensures perfect equal spacing between each board Quality Materials: The siding mounting kit is made of plastic. Quick : This siding installation tool allows for easy and accurate installation of siding. STEP 1: Adjust siding display size as : Slide and clamp the tool over each layer of siding. STEP 3: Measure over the top of the tool and support layer of siding. Repeat the above steps Fiber Cement Siding Tool:The siding tools can help to make your next siding project easier and more productive. It's designed so that the siding stays level and spaced out enough as it works its way up the wall, perfectly leveling and spacing out your siding Important: Siding gauge don't over-tighten handle, over-tightening handle may cause tool to pull away from siding, Manufacturer: PokFhgur