Description Fits all Pro series and all Gigolo machines.

All F-Machine fucking machines are supplied with a Vac-u-Lock style barb as standard, which are compatible with Doc Johnson Vac-u-Lock dildos, toys and fucking machines. With this fantastic fucking machine innovation from the pervy engineers at F-Machine, you can now choose which style of toy to use on your fucking machine and discover new possibilities for sexual play & fantasy.