Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you! Package Includes: Our multi-angle measuring ruler has 4 different colors, red, black, yellow, blue, 4 pieces accurate and reusable. Premium Material: Our multi-angle measuring ruler made of high quality hard plastic ABS material, fine workmanship, durable for any job and industry, never worry about the angle jig tool getting rusty.Metric: Our multi-angle measuring ruler uses metric scales, uses laser etched markings, embeds numbers in strong plastic materials, so there is an accurate scale design, will not wear or fade never. Easy to Use: Our multi-angle measuring rulers are multi-functional and versatile accessories, flexible, foldable, portable, durable and complete, the angle ruler can create a multi-angle layout in seconds. Wide Use: Our multi-angle measuring rulers can quickly and easily adjust the tool to any shape and angle, for DIYers, builders, craftsmen, carpentry, perfect for DIY, craftsman, l student, the office.