materials: Our circular disk is made of rubber, light and easy to apply; the dome convex hat is made of glass, stable and , and it is not easy to break. And other crystal crafts made Automatic adhesive: A double -sided adhesive tape is designed with a magnetic round back, which is convenient to stick to any smooth after peeling the protective layer. You can also apply some glue to get better results How to use: Select the pattern you like, and then connect it to the parent glass dome bald noodles in the glue, the unnecessary part of the trimming pattern, and then stick the glass dome convex on the self -viscosity magnetic circle. Only only For a few seconds, you can get your own refrigerator magnet Practical accessories: A set of CDs can help you create your favorite refrigerator magnets, label stickers to your child's test, list of your going to do it, important bills, and files on the refrigerator, which can bring a lot of convenience to your life. Practical reminder Packaging and size: with several circular disks and a few parent glass dome convex circles, it is enough to meet your needs; the disk is about. 1.4 x 0.12 inch/ 35 x 3 mm diameter and thickness, glass dome Cabochon is about. 1.4 inches/ 35 mm diameter, matching size and cute style can decorate your handicrafts well Color: Black Material: rubber Package Contents: 48 x magnets 48 x glass Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.