These empty balls are made of premium plastic material, safe and durable for use, not easy to fade, crack, 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: As Shown-Material:Plastic- Size: 5.00X5.00X5.00cm/1.97X1.97X1.97in- They are smooth in surface, comfortable to touch, more safe for your kids to use in your daily life.- Theseempty ballsare fillable, you can fill them with kids toys, small gifts and other party favors.- Perfect fillable ballsfor Easter party, kids theme party, school 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 safe plastic material, high-strength and wear-resistant, support long term use. They are reusable.Packing list50 x clear balls