Specifications: Material: Great quality made of high-carbon steel and durable silicone. How to use: just tear the stamp from the transparent paper, smear it on the acrylic block, print it on the seal with ink, place the image on the required surface, and then press it hard. Note: 1, Due to different producing batches, there might be 1-2mm deviation for the items. 2, Under different lights or on computer, there will be small difference in color. Please check the actual product! 3, The stamps includes some small size pieces and the cut dies are sharp edge, children need to be accompanied by adults. Keep sure pieces away from little kids to avoid swallow or hurts！