This is a stainless steel tool for removing spring bars and, indeed, adding them for when you want to change your watch strap.
Knurled body for extra grip.
V shape tip to grasp collars of spring bars.
Spring bars which do not have collars can be extremely difficult to remove (which is why all our bars have collars. You may well want to order a pair to make the process easier).
Buy spring bars for your watch here