A good sized prototyping breadboard is the perfect size for small to medium circuit designs.  Each breadboard is configured into 23 rows with 2 groups of 5 connect points, plus 2 outer groups of 20 connect points for a total of 700 tie points.   A great feature of this breadboard is your can purchase multiple boards and connect them together to build any size prototyping board you desire. These also have mounting holes.

TECHNICAL DETAILS
Tie Points: 270
Size: 52.5x90.5x8.5mm
Mounting Holes (M2 Screw): 4
Adhesive Backing: No
Connecting Buckles: Yes