One set includes: 4 pcs of 10 inch Heart shaped Foil Balloons (Random Color) + 1 set of 16 inch “HAPPY BIRTHDAY” Foil Balloons + 5 pcs of 10 inches Latex Balloons (Random Color) There are no hole to string the balloons. Customer usually use tape to tape balloons on walls If you would like different color balloons for mix & match, please message us what color you would like based on our options. Available Color :10 inch Heart shaped Foil Balloons - Red, Blue, Gold, Silver, Pink, Green, Light Blue, Purple, Magenta, Hot Pink Available Color :10 inches Latex Balloons - Red, Yellow, , Black, Light Blue, Pink, Lime Green, Purple Balloon size is 16 inches when not inflated / flat (before blow up). Once inflated, size will be approx. 14 inches. These balloons are air filled only. They will not float when filled with helium. Balloons are shipped flat & will need to be inflated before use. All sales are Final. No return for party product. Please note: Due to variations in computer back lighting & natural lighting elements, colors may appear slightly different than on-screen. Warning: Not suitable for children under 36 months. Adult supervision required. Misuse can cause personal injury. Dispose of responsibility. Avoid exposure to extreme temperature, excessive heat could cause the balloon to burst. Black & Blue Mix Color Happy Birthday Balloon - Free 5 Latex Balloons & 4 Heart Foil Balloons, Party, Decoration