They are basically an economy version of a Singer 99 or 99K and are a 3/4 size machine. Same basic machine but they were generally sold without a carrying case or light. If you go to Singerco.com you should be able to find a manual for a Singer 99 that will work for your machine. They use standard 15x1 sewing machine needles and class 66 bobbins.
It should be a good little machine for you.
Rodney