Description: Terminal quality, reliable, convenient and durable Arduino Screw shields Assembled terminal expansion board Provide terminal for the Arduino IO, convenient port connection With Proto shields, can be used as a prototype extension plate in the middle Prototype extending double-sided PCB via links, positive sides can be welded components It combines the power of screw shield and prototyping shield. This Proto Screw shield offers a better way to do prototyping. Dimension: Approx. 2 1/2 x 4/5 x 2/5 inch / 65 x 20 x 10 mm Package Includes: 1 Pair Screwshield Terminal Expansion Board Note: Since the size above is measured by hand, the size of the actual item you received could be slightly different from the size above. Meanwhile, please be reminded that due to lighting effects, monitor's brightness / contrast settings etc, there could be some slight differences in the color tone of the pictures and the actual item.