Top stop for slider

A slider assembly having an engaged position and a disengaged position, the slider assembly comprising:

• (a) a slider body comprising a top wing and a bottom wing that are spaced apart from one another and joined by a connecting neck, wherein each of the top and bottom wings comprises a leading edge that extends along a front of the slider body;
• and
• (b) a top stop comprising:
• a body comprising a fin that extends laterally across the body of the top stop and that projects upwardly from the body of the top stop, wherein the fin comprises a contour that generally conforms to the leading edge of at least one of the top and bottom wings of the slider body and wherein, when the slider assembly is in the engaged position, the contour of the top stop body contacts the leading edge of at least one of the top and bottom wings;
• a gap with a shape and dimensions that mirror a shape and dimensions of the connecting neck of the slider body, wherein, when the slider assembly is in the engaged position, the connecting neck of the slider body is received within the gap;
• two extensions that project from the body of the top stop beyond the gap, wherein a first of the two extensions projects beyond an edge of the second of the two extensions and wherein at least one of the two extensions comprises at least one sliding surface,
• wherein, when the slider assembly is in either the disengaged position or the engaged position, distal ends of the two extensions are separated from one another by a space having a width that is less than a width of the gap and wherein, as the slider assembly transitions from the disengaged position to the engaged position, the two extensions are configured to move away from each other so that the width of the space between the distal ends of the extensions is greater than the width of the space when the slider assembly is in either the disengaged position or the engaged position.