This square ruler is designed for patchwork and quilting, featuring a clear acrylic construction with a hollow center for easy handling. Ideal for tailors and sewing enthusiasts, it provides precise measurements and straight lines, making it suit for creating accurate patterns and designs in DIY projects. Features -Color:Multi -Material:Plastic -Size:16.50X16.50X0.30cm/6.48X6.48X0.12in -Middle hollow design: the center hollow design allows for precise alignment, enhancing cutting accuracy and making it ideal for intricate pattern assembly -Square structure stability: the square shape makes stability with straight, edges, enabling clean cuts -Lightweight and comfortable: thin and lightweight construction makes it easy to handle, making easy use even during extended sewing -transparency material: made from transparency material with clear numerical markings, making accurate measurements even in lowlight conditions -Sturdy and scratchresistant: built to withstand wear and tear, maintaining precision and extending its lifespan even with frequent use Package list: 10 x patchwork tailor ruler