Abstract: A carrier unit for a transfer system having a transfer path includes a first carrier and a second carrier, the first and the second carriers being engageable to the transfer path and configured for negotiating the transfer path, wherein the first carrier is coupled to a first gripper configured for cooperating with a second gripper coupled to the second carrier to define a socket for holding one or more products, the socket having a socket geometry determined by a relative position of the first gripper with respect to the second gripper. Each carrier unit includes an angle control device configured to maintain the socket geometry upon negotiation of the transfer path by the carrier unit.