Veewon 830 Tie-points Solderless Prototype Breadboard PCB Experiment Test Circuit Board White plastic,with black legend; Colored power rails. 830 tie points total. 200 in 2 power rails, 630 in a 30 x 10 matrix. Insertion Wire Size is 21 to 26 AWG, 0.016 to 0.028 inches diameter (0.4 to 0.7mm diameter) Weight : 82g;Package Content : 1 x Solderless Breadboard