weighted rope ratchets and double sheave pulleys, my wrist cuff rope went threw the pulley to the rope ratchet attached to me leather harness locked on holding my large purple dildo in place.. the pulling end of rope went threw the 2nd pulley wheel and to a 10lb weight.. if I pulled down on me arms it yanked up on the leather harness.. and any slack in the rope was taken up by the 10lb weight until my arms were fully out stretched... my poor cock locked in a steel cage could only feel the warm drool running down the front of my pvc maid dress...