See pictures. This is the TRAVELLING PULLEY Assembly and the SCAMs for the Concept2 Rowerg, models C, D or E. These parts are the hardware that attach to the shock cord and chain. The parts included are: PN 1104 SCAM (x2), PN 1756 Travelling Pulley Assy C/D/E, PN 1206 Travel Pulley Screws (x2), PN 1249 1/4 Nylon Jam Nut, and PN 1024 Chain Idler Pulley.
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