CM–700 kit consists of a CM–600 solderless neoprene board, 4–1/2" (114 mm) x 6" (152 mm) with 2280 elastic holes on .100" (2.54 mm) centers, mounted in a rigid holder with various mounting holes for ground and voltage locations. The CM–700 has a numbered matrix grid for easy reference and includes 4 binding posts. Ideal for solderless construction of breadboard experimental circuits. Standard components are inserted into the holes and interconnections are made by using 20 or 22 AWG (0.8 mm or 0.65 mm) wire jumpers. Positive contact is insured by the elasticity of the holes. Easy to change circuits, just pull out.