What is this?The Terminal Block is an electrical connector, it consists of flame retardant ABS insulation part brass conductor. For wiring or grounding function.What will I get?The terminal block, we provide here, is in size of: Poles: 2,5 Positions(Dual Row); Maximum Rated Voltage: 500 Volts; Maximum Rated Current: 20 Amps; Conductor Material: Brass; Insulating Material: ABS; Mount Hole Distance: 15mm/0.59 inch; 2P Total Size: 24.2mm x 23.1mm x 19.5mm/0.95 inch x 0.9 inch x 0.76 inch(L*W*H), 5P Total Size: 66.5mm x 23.1mm x 19.5mm/2.6 inch x 0.9 inch x 0.76 inch(L*W*H); Color: BlackIn the package of 3 Pcs x 2P terminal block and 2 Pcs x 5P terminal blockAre there any advantages of the product?It is made of brass conductors, with great electrical conductive and reliability.