For R31 Prototype Screw Terminal Shield Board Kit Includes prototype PCB, terminal blocks, female sockets The terminal module is made of high-quality materials, with fine workmanship and durable Consists of screw terminal block, PCB carrier, FR-4 glass fiber PCB Durable and practical Specification: Junction Box: Pitch: 3.5mm mini terminal block, a total of 84 pins (3 pole x 24, 2 pole x 6) Wire range: 26~16AWG, strip length 5mm, screw M2 steel, pin head and cage brass PCB: Pad mesh/spacing: 2.54mm, hole diameter: 0.8mm (.) Terminal block spacing: 3.5mm, hole diameter: 1.2mm (.) Female socket: Pitch: 2.54mm, Pin Length: 15mm (.) Single row 10pin x1pcs, single row 8pin x5pcs, double row 18pin x1pcs colour: green Material: PCB Size: 13x7cm Package Contents: 1 x Terminal Block Shield Board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.