Backstop DiskAlpha/Gigolo/Pro
The Backstop is a convenient, easy-to-fit plastic disk that sits behind the F-Machine vacuum locking barb.
The Backstop is a convenient, easy-to-fit plastic disk that sits behind the F-Machine vacuum locking barb. It’s ideal for dongs which do not have a suction base or balls, providing a safety barrier to prevent over insertion of toys. One Machine, F-Machine