These empty balls are made of plastic material, safe and durable for use, not easy to fade, creak or deform, can serve you for a long time. Provide you enough quantity and rich colors for meeting your different needs, bring you more conveniences. Features -Color:Random Color -Material:Plastic -Size:4.50X4.50X4.50cm/1.77X1.77X1.77in - Round fillable balls are smooth in surface, comfortable to touch, safer for your teens to use in your daily life. - These empty balls are fillable, you can fill them withplaythings, small gifts and other party favors. - Perfect fillable balls for Easter party, birthday party, classroom prize, DIY crafts and much more. - This is lovely in look, simple in design and practical in use, give you a pleasant playing experience. - Made of safeplasticmaterial, high-strength and wear-resistant, support long term use. They are reusable.Packing list60 x Empty Balls