An exercise apparatus includes first and second handles that fit within a user's hands and are formed from non-porous and water impermeable material. Each handle has a medially disposed end provided with a disc-shaped region and a central cylindrical region. The central region is intercalated between first and second disc-shaped regions and has a diameter smaller than corresponding diameters of the disc-shaped regions. Elongated and hollow shafts have lateral ends conjoined with the medial ends of the handles. The shafts have coextensive lengths and arcuate shapes. The lateral end is conjoined to the handles. A mechanism is included for attaching the shafts together such that the second shaft partially slides into the first shaft. Portable weight members are attached to the handles, against the central regions. A helical spring member is housed within one handle and abuts the first shaft, providing a resistive force against which the shaft is engaged.