The new, redesigned Hub is a Funkit attachment for rope bondage. Its grooves and central gap allow you to tie a toy in place during a rope scene with grooves for one or two cords. Designed for the ever popular 1/4" rope, the edges lean inward when you press down on a knot in the center for a better grip.
 
Pairs well with any dildo, the Cashew plug, or the Oracle ball gag.