[Very Smooth and Sturdy Roller] Whether you are a diamond painting art lover or just want to start, this roller is the right tool for you. With its sturdy structure and hard acrylic structure, it can easily stick the diamond painting beads on the canvas more firmly [Help Diamond Art Stick Keeps Level No Sequins Out of Line] The roller is perfect for keeping your diamond painting flat and diamonds securely on the picture [Ideal Size for Both Adult and Child Size Hands] The roller is available in two sizes, so ensure you have the perfect scale for your projects. With a ergonomic handle and smooth roller, this tool is a great addition to your collection [Versatile Tool] Good for many craft ideas and good for little ones that need to put pressure on the craft [Ideal for use with Diamond Art Projects] Size includes: 10*2.5cm, 15*2.5cm Color: transparent Package included: 1pc*roller