Breadboard Large with Polarity Markings

Dimension : 10×22 cm / 3.9×8.6 inch (W x L)
Hole ( row x column ) : 80 x 38
Material : glass fiber FR4
Metal :Tin-plate
Thickness : approx. 1.6mm
Hole Pitch : approx. 2.54 mm
Hole Diameter : approx. 1 mm
Mounting Hole Diameter : approx. 3 mm
Color : green basic,silver tone