41 and its associated nozzle 42 all six of the finger grooves 36 41 formed around the exterior surface of palm ball 32 are arranged as illustrated in fig5 each of the six nozzles 42 associated with finger grooves 36 41 is connected by means of a suitable length of flexible tubing 44 to a discharge port 58 of pump assembly 18 a nozzle 46 is mounted in the center of palm ball 32 to direct a pulsating jet of liquid toward the palm of the user 39 s hand another length of flexible tubing 48 is similarly employed to convey liquid from pump assembly 18 to nozzle 46 a generally semicircular nozzle strip 50 shown in detail in fig7 and 8 is formed so as to be substantially u shaped in cross section with a pair of flanges 51 and 52 extending the length of the nozzle strip nozzle strip 50 which may be fabricated of the same plastic material as upper housing 12 is sealed by means of flanges 51 and 52 to the inner surface of upper housing 12 so as to form a cavity 53 extending the length of nozzle strip 50 cavity 53 is plugged at one end 54 of nozzle strip 50 and is terminated at the other end of nozzle strip 50 in a.