About This Measurement Kit: the attic measuring rulers kit boasts a generous supply of 1, 000 pieces, each precisely 25 inches in length; This extensive collection ensures an ample stock that will last for a considerable time, providing an invaluable resource for contractors and inspectors Accurate Insulation Measurement: the attic insulation R-Value rulers are engineered to be securely nailed to joists or rafters, allowing for accurate measurement of a wide range of blown-in insulation materials; Specifically tailored for materials, these rulers ensure precise and consistent measurements, resulting in a neat and evenly distributed insulation layer User Friendly Design: utilizing the attic measuring rulers is remarkably straightforward; Simply install one or two rulers every few hundred square feet to inspections for homeowners; Additionally, these rulers enable homeowners to quickly assess the evenness of the insulation layer with just a glance Wide Application: the 25 inch attic measuring rulers are specifically designed for blown-in insulation applications; Capable of measuring insulation values up to R-69, these rulers offer unparalleled versatility to meet all your insulation measurement requirements Adjustable and Versatile: the attic insulation R-value rulers feature a flexible design that can be easily bent to accommodate different measuring scenarios and adjusted to the desired length; This adaptability enables users to customize the rulers according to their specific needs, ensuring precise and accurate R-value measurements every time Overview Brand : Saysurey Color : White Style : Classic Product Dimensions : 31.5"L x 10.63"W Unit Count : 1000.0 Count