【PremiumMaterials】: The Hinge Installation Kit is made of study PP material and anti slip silicone pads on both sides, ensuring stability, durability, and long term use 【Door Hinge Mortiser】: The Door Hinge Jig is suitable for cutting and installing door hinges of round or square corner hinges 【Suitable】: The Door Hinge Mortiser allows you to cut mortises in the doors of hinges from 3" to 5" in length and hinge types of square, radius 1/4" or radius 5/8" (Template Size: 7.8"L×3.5"W×2"H)(Note: Only for door not the jamb) 【Easy Installation and Use】: The Door Hinge Router Template can adjust hinge length and thickness, rounded and square corners 【High Accuracy】: The Door Hinge Jig with built in depth gauge on the side for the attached router head to set depth and comes with a self centering hinge head to ensure accurate hinge screw position Size Chart: Package Size: 20cmx13cmx5cm/7.87inchx5.12inchx1.97inch Package Includes: 1 Set of Door Hinge Jig Note: Please allow slightly errors 1-2cm differences due to manual measurement.