Get your project up and running with these screw terminal blocks. The kit includes terminal blocks for a total of 50 pieces. The pitch pin spacing for these terminal blocks is 3.5mm. They can be soldered in place also pin spacing will fit the standard breadboard. Features - Color: Green. - Material: Plastic. - Size: 1.70 x 1.30 x 0.90cm/ 0.67 x 0.51 x 0.35 inch. - Applied to PCB wiring, easy to welding, stable and reliable, spiral wire is not easy to take off . - Used widely in the electronics, equipments, instruments, calculator, automatic control system, domestic appliance and warning devices, etc. - terminal , it is durable and wear resistant for long-term use. - The terminal blocks are engineering materials, with excellent and impact resistance. - plastic guide, excellent electrical conductivity, the appearance of plated, rust and durable. Package list: terminal connectors