It consists of an aluminum shank with 1/4", 3/8" female ends, a 1/4" double-sided screw and a 3/8" to 1/4" reduction.
The 150W halogen bulb with E11 socket, for modeling light in flash lamps.
Hot shoe adapter with a PC socket compatible with Minolta/Sony system.
Hot shoe adapter with PC and mini jack 3,5mm sockets. The adapter mounted on camera hot shoe allows to use studio flashes with cameras with no PC socket.