NEEWER i-TTL/iTTL off-camera coiled Sync remote cord for Nikon flash SC-29 Specialize for Nikon iTTL flash units, to achieve off-camera speedlite TTL Sync flash. Nikon I-TTL functions are supported, compatible with Nikon DSLR and flashes The straight cord length: approx.150cm Comes with safe lock and PC plug. The coil cord length: approx. 80cm