Universal Clear Solderless Breadboard,400 holes transparent color board experiment board 400 holes Size: 8.3 x 5.5 x 0.85cm/830 size:16.5X5.5cm Material: ABS, phosphor bronze nickel plating Color is show as pictures. Features: 400 tie points 1 Double strip, Total 300 tie points 2 Power lanes, Total 100 tie points in power lanes Perfect for Arduino shield prototyping and testing Plastic housing, metal contact clips