This is a set of ratchet joint plates to replace the ones inside the hips on Combiner Wars Optimus Prime and Motormaster, and should allow them to pose more more comfortably, with twice as many positions as the original design. You only need to replace the piece that is attached to the frontal thigh plate, you should be able to keep using the other original piece. You also need to remove them from the sprues before use. This is four ratchets, enough for two toys. This model is designed to be printed in stainless steel for extra durability. For plastics, please see
here.
UNTESTED