This is a bundle of four flash-triggering devices, three of them made by Wein, for cordless firing of flash via an attached unit or studio flash system.
Included are the Wein Sync-Link Transmitter Trigger, in original unopened package; the Wein Ultra Slave Batteryless Pulse Light slave, opened but not used; The Wein Meter Mate Flash Meter-Activated slave trigger (used); and an unbranded slave flash trigger (used).
Please be sure these devices are compatible with your flash setup, and write with any questions.