1, The item has been soldered and assembled, support for Raspberry Pi Zero or Zero-W. With the module you can easily extend Raspberry Pi Zero projects to IoT/industrial control applications. 
2, Terminal block pitch 2.54mm/0.1", wire size range 28AWG to 18AWG, strip length 4.5mm, screw M1.6 steel, pin header and cage copper. 
3, FR-4 fiber glass PCB, dual copper layers.
4, The terminal block label can clearly identify the position of the functional pins. 2x20 positions header connect to Raspberry Pi Zero board.
5, Packing list: 1x terminal block breakout module. 8x screws and 8x brass standoffs (for the breakout board and Zero board mount). 1x 2x20 positions header connector (the connectors must be soldered to Raspberry Pi Zero), 1x small slotted screwdriver (NOTE: the item not include Raspberry Pi Zero Board).