What makes Sonostar’s geodesic domes different from other domes is our robust geodesic frame. Similar domes are being marketed with a much weaker frame. The Bubble Domes make use of Sonostar’s unique injection molded dome connectors with an angle in each arm for curvature and molded holes for connecting bolts. The struts are made of Schedule 40 PVC, which is available everywhere, and is easy to cut and drill. The resulting domes are very strong, lightweight, easy to assemble/disassemble, and aesthetically pleasing. Sonostar Bubble Dome Covers allow you to create a strong, weatherproof space that has many uses.