Seamless Installation: the package includes 6 pieces of DIN rails(3 pcs 6 inches and 3 pcs 12 inches), which allows multiple mechanical components to simply snap or slide into place along the rail; As a result, setting up your device becomes less strenuous, saving your time and labor costs, Practical Size Design: with the length of approximately 6 inches and 12 inches, the DIN rail mount is well designed to keep wiring schemes effectively organized and visually clean; A rail has 12 holes, each hole size is about 0.24 x 0.59 inch/ 6.2 x 15 mm, Quality Materials: these DIN mounting rails are constructed from aluminum, ensuring strength and long lasting durability; They are resistant to rot and corrosion, promising endurance in varied environments, Enhanced Security and Maintenance: aluminum rails are not merely for organizing your components; They significantly enhance the overall security of your system and facilitate easy maintenance, Much Versatility: aluminum DIN rails are designed for standardized width and shape electronic components or equipment such as relays, circuit breakers, terminal blocks, motor controllers, power supplies, contactors, and more; Broad compatibility ensures that your specific needs are met without inconvenience