This is a set of 8 used strings, including at least a violin E string (loop end and ball end) and possibly a viola C string. Suitable for storing unused instruments or for temporary stringing. There are likely no breaks or unraveling, but detailed inspection has been omitted, so please consider them as junk. There is a possibility that some strings have been heavily used, while others have simply been strung for a long period. I cannot answer questions about the manufacturer, brand, gauge, etc.