I wanted to take my paint pendulum and modify it to be more modular so you can make it larger and stable. This version is @ 15" high. The bob also was remixed to hold more paint and make it heavier. Uprights were designed to be used both as uprights and to expand the base. I would recommend that infill be at least 20% to aid it it's stability. Future remixes will include additional stability between the uprights and the base. I attach the bob with string and keep additional string available to lower or raise bob height