Solderless breadboards connect pin to pin by metal strips inside the breadboard. Because the solderless breadboard does not require soldering, it is reusable. This is similar to the pattern of default connections on a solderless breadboard. Solderless breadboard modules can also be found mounted on devices like microcontroller evaluation boards. A breadboard is a construction base for prototyping of electronics. A brassboard follows an earlier prototyping stage called a breadboard. The adapter is then plugged into the breadboard via the connectors. Another example is the use of CPMV as a nanoscale breadboard for molecular electronics. These are typically high-quality breadboard modules mounted on a flat casing. For example, a working concept of an electrical device may be constructed using a breadboard. An alternative to an optical table is an optical breadboard. Others just provide breadboard blocks which contain both in one block. The number of tie points is often given in the specification of the breadboard. This type of breadboard may be slightly easier to handle. Older breadboard types did not have this property.