Pack of 3 Cake Topper Assorted Balloon 3PK. So small but so fun for your cake decoration. Balloon Size: 12cm when fully inflated. Stick Height: 20cm. These three mini balloons are made from natural organic materials and 100% biodegradable natural rubber latex. Stretch balloons before inflating. Do not overflate. Please refer to detailed instructions on the package. Inflate mini balloons with air. A pump is recommended. Tie string under knot of balloon.