The ornamental design for an eyewearstrapconnectorpiece, as shown and described.
FIG. 1 is a front left perspective view of an eyewear strap connector piece showing our new design;
FIG. 2 is a rear right perspective view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a left/right side view thereof; and,
FIG. 6 is a front/back view thereof.
The portions of the eyewear strap connector piece shown in broken lines form no part of the claimed design.
The eyewear strap connector piece is shown with a symbolic break in its length. The appearance of any portion of the article between break lines forms no part of the claimed design.