Yongnuo RF-602 RF602 N Wireless Remote Flash Trigger Receiver. Used not tested.

UK Hot Shoe / Cold Shoe Flash Trigger Mount To Stand

Flash Trigger 2.5mm mono plug x 40 cm cord unbranded

Micro Trigger Flash Slave PC Suction Cup 35mm SLR Mini Cell

Kaiser 2.5mm x 10meter mono plug flash trigger cable vintage with cable reel

Vintage Collectible NISSIN SYNCRO-EYE Flash Slave Trigger with lead BOXED

Vintage Nissin Optical Flash Synchro-Eye Slave Trigger Unit

Bowens Infra Red Trigger with Hot Shoe Adapter, PC Flash Connector, Test Lamp