Features: 1.Made of high?quality stainless steel, which is not easy to rust or crack. 2.The ruler has a smoothly surface, easy to clean and use, and can be used for a long time. 3.The grid fits the canvas symbol accurately, making it easier to paste. 4.Nano‑coating makes the ruler not stick to the canvas and can be easily torn to prevent the diamond from sticking. 5.Complete tools, you can operate it yourself, suitable for DIY enthusiasts specification:Item Type: Diamond Painting Ruler Material: Stainless steel, plastic 1. Square Diamond Painting Ruler: Suitable for 2.5mm square diamond painting, that is, 50 diamonds 125mm. 2. Round Diamond Painting Ruler: Suitable for diamond painting with 2.8 radius square diamonds, that is, 50 diamonds of 141mm. Size: Approx. 2.5mm / 0.1in, 125mm / 4.9in 2.8mm / 0.1in, 141mm / 5.6in 3. The diamond painting tool allows you to complete your favorite diamond painting faster and easier, enjoy the fun of DIY and complete outstanding masterpieces, suitable for adults and children Size: Approx. 16cm / 6.3in 7.2cm / 2.8in 4cm / 1.6in 14cm / 5.5in 10cm / 3.9in PackageList:2 x Diamond Painting Corrector2 x Diamond Painting Ruler