This is a 4 input shorting PCB terminal, used for zero adjustment of digital multimeters and measuring the input noise of the DMM.
 
Functionality description: the item shorts Lo/Hi inputs of the 4W Sense and Lo/Hi inputs of the Voltage.

The PCB is made by OSHPark with ENIG (Gold) finish. The size is 26mm x 41mm (1.02 inch x 1.62 inch).
The 4mm banana plugs are gold plated brass.
The bolts are made of solid brass.
The materials are selected to have minimal thermal EMF voltage (0.3 µV/°C for copper-gold, 3 µV/°C for copper-brass). This allows minimum time for thermal equalization between the shorting PCB and the DMM meter terminals.
The PCB drills for banana plugs have 3.45mm/0.135inch diameter.

The package includes:
1 pcs. ENIG PCB 1.6mm thickness, 1oz copper with short connections between all inputs.
4 pcs. Gold plated banana plugs (4mm diameter, 16mm long).
4 pcs. M3x5mm brass bolts.
1 pcs. M3x16 bolt for connection between the PCB and the handle.
1 pcs. 3D printed lid and handle made from PLA.
1 pcs. Assembly instruction manual.

The delivered item is not assembled. The client has to assemble the product itself. 

The parcel is registered, with tracking number (check the country exclusion list).
For some countries (Canada as far as I know) the tracking is not provided by destination country post service.

Buyers outside Europe Union are responsible for paying all import duties and taxes. 
The sold price + shipping + applicable taxes will be declared on the parcel.

I can not issue an invoice, because I'm individual, not a company.

The selling of this product funds the open source digital multimeter project - opendcm blogspot.

Handling time:
Shipment is usually done next working day.