Mudder 16 Pieces Double Sided Prototype Universal Board for DIY, Multiple Sizes;

Specification:
Thickness: 2 mm/ 0.07 inches 
Hole pitch: 2.54 mm/ 0.1 inches 
Hole diameter: 1 mm/ 0.04 inches 

Sizes:
2 x 8 cm/ 0.79 x 3.15 inch
3 x 7 cm/ 1.18 x 2.76 inch
4 x 6 cm/ 1.57 x 2.36 inch
5 x 7 cm/ 1.97 x 2.75 inch
7 x 9 cm/ 2.75 x 3.54 inch

Package included:
2 x Prototype PCB (2 x 8 cm)
4 x Prototype PCB (3 x 7 cm)
4 x Prototype PCB (4 x 6 cm)
4 x Prototype PCB (5 x 7 cm)
2 x Prototype PCB (7 x 9 cm)