A forward component has a frusto-conical forward section terminating in a cylindrical aperture. The forward component has a cylindrical rearward section terminating with male screw threads. A rearward component has a cylindrical forward section terminating with female screw threads. The rearward component has a rearward section with a cylindrical recess. A support is removably positioned within the forward and rearward components. The support has a frusta-conical leading region and an intermediate region and a cylindrical trailing region. A plurality of annular weights with cylindrical apertures are positioned on the trailing region of the support. A string formed with an enlarged end is positioned within the forward section. The string is adapted to facilitate handling of the system.