High quality material: Made of high-strength aluminum alloy, durable and practical. Save time: Select the template corner you want to duplicate and place it on the desired corner of your wood. Quickly effective - The Kit as a template with which the wooden board corner can be shaped into a round shape. It is a practical and professional tool for woodworkers to make the work smooth and efficient. Box Contents: 2 x Quick Locations. which meet your different grinding or trimming needs. Product Description Description: Fast woodworking locator. Made of high strength aluminum alloy material for durability. It is your perfect choice for carpenters. A practical and professional woodworking tool that makes the work smooth and efficient. Specification: Product name: quick detection device. Material: aluminum alloy. Color: red. Fillet specifications : R10, R15, R20, R30.