Features: *MEGA-2560 R31 Prototype Screw Terminal Block Shield Board Kit for Arduino*Includes prototype PCB, terminal blocks, female header sockets*The terminal module adopts high quality material, fine workmanship treatment, durable to use*Made up of screw terminal block, PCB carrier and FR-4 glass fiber PCB*Not assembled yet, you can use variety ways to mount, flexible to use*Durable and practical to use Specifications: *Color: As Pictures Show*Terminal Block:Pitch: 3.5mm mini terminal blocks, total 84 pins (3pole x24pcs, 2pole x6pcs)Wire range: 26~16AWG, strip length 5mm, screws M2 steel, pin header and cage brass*PCB:Pads grid /pitch: 2.54mm, hole diameter: 0.8mm (Approx.) Terminal block pitch: 3.5mm, hole diameter: 1.2mm (Approx.)Dimension: 12.024*7.72cm (Approx.)*Female Header Socket:Pitch: 2.54mm, pin length: 15mm (Approx.) Single row 10pin x1pcs, single row 8pin x 5pcs, dual row 18pin x1pcs Package Contents: 1*Terminal Block Shield Board Kit Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Note: The data are all manual measurement, please allow 1-3cm error, due to the light and display difference, there will be some color difference, depending on the physical object received.