Designed for use with any landscaped or grassy area. Each Balloon Cluster Arm is 11 1/2" wide and holds two Balloon Holders. Reusable Balloon Cluster Kit: Checkered-Black The use of two Cluster Arms allows this kit to hold five Reusable Balloons at once! Unique twist notch-lock design allows these Balloon Holders to be safely and securely interchanged with our Reusable Balloon Window Holder Kit (EZ529). These Arms can be easily added to any existing Reusable Balloon Ground Pole.