Solid Breadboard unfortunately without any description. The you have to search the Internet. But that is only the first breadboard a problem since there are few types of breadboards. What I find problematic is that the components are classified as "in stock, immediately available", but then come from Asia, so they ankammen after abundant a week. Formally, all right, but I am still "fooled" because I for "in stock, immediately available" assumed that the components are as usual tomorrow in my mailbox.