3V refers to the frequency of triangles used in the dome structure. The higher the "v" number, the stronger and rounder your dome structure will be. Our 3V Geodesic Dome Kits are perfect as a Geodesic Dome Greenhouse, a Geodesic Chicken Coop, a geodesic gazebo, a dome aviary kit, other backyard dome or any Geodesic Dome Shelter project you can think of. We carry both hub only and full geodesic dome kits that include pre-cut and color coded PVC struts.
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