Solderless SS breadboards, with tight metal spring under tie point for good connections, springs aligning perfectly with points makes the tightness of all 400 points are the same. electricity flows horizontally , there are 5 insert points on the horizontal power path, low electrical resistance. Mutiple board can be connected together for expansions (bolts on the side) , 2 removable power rails on both side of the pcbs, Self-adhesive tape on the back of the bread board(single sided Prototyping Circuit boards 400 pins holes solder free). Type: BB801 | Busboard Hole-diameter: 0.9 mm | Hole-pitch: 2.54 mm / 0.1 inches | Thickness: 10mm | Kits : 3pcs 400 pin board | White Electronics Protoboard single-sided ABS voltage: 300v | low current: <5A | 20-29 AWG(0.3-0.8mm) jumper dupont wires | compatible with Raspberry Pi (rpi) and Arduino, led diode, screw terminal, dupont wire, connector, resistor , capacitor , IC, DIP, sensors, transistor and other electric power components or devices| For Computer Science Class hobby hobbyist experiments point-to-point projects WARRANTY AND CUSTOMER SERVICE – We provide 1 year warranty for this pcs board, Our Electronic Customer service team is ready for income request 24×7. Package :3 pieces
