Electronix Express 03MB801 Solderless BreadBoard, 400 Tie-Points, 4 Power Rails, 3.3 x 2.1 x 0.3" (84 x 54 x 9mm) 400 tie points total. 100 in 2 power rails, 300 in a 30 x 10 matrix White plastic, with Black legend. Colored power rails For wires 21 to 26 AWG 2-Sided peelable adhesive tape