Stems and springs are removable pins that insert into attachments creating rotation. White stems keep the attachment rigidly in position and provide firm, maximum stimulation. Springs allow attachments to be flexible and provide a more gentle stimulation. Springs and stems are interchangeable.
Price is per stem/spring.
Each Sybian Package comes with 3 white stems and 1 spring. These will be located in the Sybian Envelope when you unpack your box. These are replacement parts.