The bottom is locked into the spreader bar with ankle cuffs (which are locked to the spreader bar d-rings with a small padlock). With legs spread 24 inches apart the adjustable anal impaler can be inserted in the anus or vagina. It can adjust from 18 to 32 inches. Deep enough for most. The sub will be forced to stand or hobble around with this humiliating device penetrating them.
To be used more sadistic, bolt or fix the spreader bar to the floor. Make them get all the way on their tip toes and then raised the dildo and insert as far as possible. If they now attempt to put their heel down to rest, the dildo will further penetrate them if they have room. If not they will be forced to remain on their tip toes totally impaled.

Note: Ankle restraints and dildo are sold separately. Any flared based dildo, less than 1.75 inches in diameter will work with the rod.