Made of strong and durable plastic material, pretty easy to close and open, two halves of the ball could be snapped together.Each sphere can be separated into two parts in order to open and close them freely. Slip a piece of ribbon, twine, rope or wire through the loop to hang.They are reusable. If you want to change your home decor, you can simply remove the contents of the ornaments and replace with whatever you want.Great for DIY crafts, you can fill the clear balls with any small trinkets such as beads, glitter, stickers, photos or ribbon pieces to create perfect holiday atmosphere.