Nipple Pump 10 piece Set

For permanently stiff nipples! Two suction pumps plus 8 mounting rings included
Just slide one of the rings onto the pump opening and place the opening on the connector
Then, gently press the pump down—it feels like your partner is gently sucking on it! The vacuum causes your nipples to swell beautifully—and they stay firm as the attachment ring slides over your nipple.
diameter˜ of the nipple-pump opening 0.7 cm and 1.1 cm
fastening rings - diameter˜ 2 x 0.5 cm, 0.7 cm, 1 cm and 1.2 cm (slightly expandable)
PVC, ABS, silicone