[Product Content] You Will Receive 1 Piece Of Door Seam Inspection Tool.The Size Is 15Cm And The Color Is Black And Brass. It Is Suitable For Fire Door Gap Measurement And Engineering Inspection. [Product Material] This Product Is Made Of Copper-Plated Material To Ensure Its Durability And Long-Term Use.The Copper-Plated Material Not Only Increases The Robustness Of The Tool, But Also Prevents Rust And Corrosion, And Is Suitable For Use In Various Environments. [Precise Measurement] This Product Is Designed To Accurately Measure Door Crevices And Other Gaps In Small Spaces.Help Users Quickly Check The Gap Between The Door And The Ground To Ensure The Flatness And Sealing Of The Door, Especially Suitable For Doors With Special Requirements Such As Fire Doors. [Multifunctional Application] This Product Is Not Only Suitable For Door Seam Measurement, But Also For Other Engineering Inspection And Decoration Measurement.The Multifunctional Design Makes It A Practical Tool For Engineers, Decoration Workers And Home Diy Enthusiasts. [Easy To Carry] This Product Is Designed To Be Lightweight, Easy To Carry And Store.Its Size Is Moderate, Easy To Use, And It Is Suitable For Carrying To Various Work Sites And Measuring At Any Time.