Nexus Sparta is a luxury prostate massager that uses unique stroker technology in the tip of the shaft to stimulate the prostate. Choose from five stroker stimulation settings that simulate the 'come hither' motion to find the one perfect for you. Sparta is made from silky soft silicone, is waterproof and rechargeable using a convenient USB magnetic charger. • Waterproof • Rechargeable • Five stroker stimulation settings