Pneumatic 30 PSI Squeeze Bulb Dynamometer Toe Crests Designed to provide support when 16 7136 Designed to provide support when getting into and out of bed and when moving from a lying position to a sitting position s newly designed hospital grade breast pump was created to make expressing breast milk as comfortable and efficient as possible * The innovative interface enables you to create and save custom settings for future use * With unique massage and expression settings this unit can calibrate each mode individually * Vacuum strength and cycle speeds can be adjusted manually and uniquely for either breast enabling a personalized experience * Adjust between settings and toggle back and forth between sides depending on your unique needs for a customized experience 30 psi * The inexpensive way to reliably measure hand and finger strength * With an indicator dial that remains at the maximum reading until reset * Calibrated in psi *