acrylic of good, hard, sturdy and, not easy to break, can serve for a long time Easy to clean with water and towel, you shall clean before every application for better in using Clear acrylic blocks, let you see the process when you ' re stamping Are good for stamping craft projects like notebook, journal, cards, invitations, scrapbook pages, stamps, schedule book, clipboard, planners Clear Stamp Block only, other accessories demo in the picture is not included Detail stands out very nice The unique shape with rounded corners allows for better grip when using it and the transparent allows easy image positioning