You can take off the cap on the transparent ball, you can freely DIY, fill with glitter or other decorative materials. These transparent balls are used to decorate Christmas, weddings, baby showers, birthday party, Valentine's Day, home and school showcases The transparent ball is more rugged than other ordinary plastic balls.The clear and shiny appearance makes it become the best Christmas decoration. These balls are made of heavy duty plastic, easy to clean, smooth surface, safe and not easy to break. These refillable balls can be filled with other things, such as pictures, pebbles,flowers, candles, and can also be filled with sweets and other small snacks.