This product is a lot of 4 unbranded brown compression springs, each measuring 25mm x 105mm. These springs are new old stock (NOS) and are ideal for various industrial and commercial applications requiring reliable fastening and support. With their sturdy construction and compact size, these springs offer a practical solution for your hardware needs. I am,not a machinist.  Measurement is as close as I can tell.   These came from a machine shop auction. Most likely Raymond brand since other stuff from this shop was Raymond(Dieco).  If you know more about them or what type of a machine they are typically used for please let me know.  Or if there is a lot size that makes more sense please let me know.