A weightable hoop system comprising: a single bodied molded hoop with a top and a bottom comprising: a first annular volume located at the top; a second annular volume located at the bottom; a pinch seal located between the first annular volume and the second annular volume, and preventing fluid communication between the first annular volume and the second annular volume; a first threaded input member in fluid communication with the first annular volume; and a second threaded input member in fluid communication with the first annular volume.