Features: Wide applications: The bounce balls can be applied as interesting game props, suitable for party, birthday, Thanksgiving, graduation, wedding, sports day and more, adding endless joy. Funny gifts: The sport ball hoppers can be regarded as nice gifts for friend, family member and more, can improve coordination and balance, strengthen your body. Specifications: Material: strong PVC material Color: red, blue and yellow Size: 18 inch/ 45 cm Package includes: 3 x Hopper ball 1 x Air pump Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Do not overinflate the balloons to avoid bursting