This is a Standard Universal Clear Solderless Breadboard it has 830 Tie points.
Features 2 split power buses 10 columns and 63 rows.
Perfect for straddling DIP packages 
Board accepts wires between 20-29AWG
The board comes with a self-adhesive back and interlocking parts so you can join multiples together.
Dimensions: 6.5 x 2.1 x 0.38" (165.1 x 54.29 x 9.68mm)