These round shaped ornament ball shells can open up to put objects or ingredients inside. Each plastic round ball is 5.5" inches in diameter and equipped with a hook on top to easily hang whatever is inside with string, perfect for holiday decorating on Christmas trees. Made of heavy gauge plastic, a luxurious & almost glass-like material. Make the perfect set of homemade bath bombs free of any small air holes! Easy to pour in your favorite ingredients for a baking recipe or a paint holder.Each rounded ornament/shell measures at 140mm (5.5" inches) in diameter.